Portuguese Verb Tenses and Moods Explained: A Usage Rundown Anchored to English

With so many conjugations, Portuguese verbs are a hard-to-chew bit for anyone learning the language, especially for those not acquainted with any Romance language from before. 

Now, it is one thing to keep track of all the different verb forms and spellings (by memorizing them), it is another to develop an understanding and intuition of when to use a given verb tense.

This article focuses on the latter and should give you a decent grasp of which verb tenses, moods, or structures apply to different situations and contexts. 

In what follows, we’ll dive into the Portuguese verb system anchored to English tenses. In this way, and assuming you are familiar with English, it will be easier for you to navigate Portuguese verbs. Read on.

Portuguese Present tenses

Present tenses are normally used to denote the present time.

To give examples of the different aspects of the Present tense, I will use the verb ensinar (teach). This verb belongs to the first group of regular verbs whose infinitive form ends in -ar (patterned endings italicized):

	Ensinar | Present Presente
eu	ensino
tu	ensinas
ele/ela	ensina
nós	ensinamos
vocês	ensinam
eles/elas	ensinam
Past Participle	ensinado
Present Participle (Portuguese gerund)	ensinando

Learn more about regular conjugation patterns in the Present tense: Portuguese Regular Verbs and Conjugation Patterns in the Present Tense.

Present Simple

Like English, you’d often use this tense when referring to something done regularly (habits, repeated actions, etc). Here’s an example:

ensinar (present) 
Eu ensino Português numa escola de línguas.
I teach Portuguese in a language school.

Expressing future time

You can also use the Present Simple to express a future time (with the help of an adverb or adverbial phrase of time indicating a time ahead):

adverb of time > ensinar (present) 
No próximo mês, ensino só às tardes.
Next month, I will teach only in the afternoons.

Present Continuous

The Present Continuous tense denotes an ongoing action, something that is happening at the moment it is mentioned. We’ll now be using the auxiliary verb estar, the Portuguese counterpart of the verb to be:

	Estar | Present Presente
eu	estou
tu	estás
ele/ela	está
nós	estamos
vocês	estão
eles/elas	estão
Past Participle	estado

To be sure, there are two verbs to be, namely ser and estar. Read the following article to dig deeper into their differences: Portuguese Verbs ‘Ser’ and ‘Estar’- How and When to Use Either).

The Present Continuous is formed by conjugating the auxiliary estar in the Present Simple and adding the preposition a thereafter. The main verb, in the infinitive form, comes last: 

estar (present) > a > ensinar (infinitive)
A Carolina está a ensinar Português em Praga.
Carolina is teaching Portuguese in Prague.

Notice that the Present Continuous, like all progressive tenses, looks slightly different in the Brazilian standard – you’d leave out the preposition after the auxiliary verb, and the main verb comes in the Present Participle (-ing form equivalent) instead*. This verb structure is closer to English:

estar (present) > ensinar (present participle)
A Carolina está ensinando Português em Praga.
Carolina is teaching Portuguese in Prague.

* The Present Participle is called Gerúndio in Portuguese, and this verbal form is widely used beyond Progressive/Continuous tenses (in either standard). Learn more about gerúndio here: Portuguese Gerund: Progressive Tenses and Beyond.

Present Perfect

All perfect tenses use ter as the auxiliary verb (the Portuguese counterpart of have). Concerning the Present Perfect tenses, in particular,  the auxiliary verb ter comes in the Present Simple tense:

	Ter | Present Presente
eu	tenho
tu	tens
ele/ela	tem
nós	temos
vocês	têm
eles/elas	têm

In English, the Present Perfect tenses refer to either unfinished (still ongoing) or completed actions. The Portuguese Present Perfect equivalent (structure-wise only), however, concerns unfinished actions only. Let’s take a closer view of that.

Unfinished actions

We tend to use the Present Perfect Continuous to refer to actions that started in the past and continue up to the present. Here’s an example of what that can look like in Portuguese:

ter (present) > ensinar (past participle)
A Carolina tem ensinado Português desde que chegou à Itália.
Carolina has been teaching Portuguese since she came to Italy.

Notice that the structure above resembles the English Past Perfect Simple than the continuous. However, you can perfectly use a version more akin to the latter without any change in meaning (both as correct):

ter (present) > estar (past participle) > a > ensinar (infinitive)
A Carolina tem estado a ensinar Português desde que chegou à Itália.
Carolina has been teaching Portuguese since she came to Italy.

* Learn more about the Portuguese Past Participle in this article: Portuguese Past Participle and Auxiliary Verbs that Go with It.

As already mentioned, all continuous tenses have a slightly different verb structure in Brazilian Portuguese (the preposition a is left out and the main verb occurs in the Present Participle form instead of the Infinitive): 

ter (present) > estar (past participle) >  ensinar (present participle)
A Carolina tem estado ensinado Português desde que chegou à Itália.

Last but not least, you could perfectly express the same time-flow quality of these Present Perfect tenses (unfinished actions) by instead using the simpler Present Continuous, which is very common: 

estar (present) > a >  ensinar (infinitive)
A Carolina está a ensinar Português desde que chegou à Itália.

Or in the Brazilian standard:

estar (present) >  ensinar (present participle)
A Carolina está ensinando Português desde que chegou à Itália.

Finished actions

In English, Present Perfect tenses (simple and continuous) often refer to completed past actions. In Portuguese, however, we are likely to use a simple tense, the Preterite (we will talk about the Preterite in a moment):   

Present Perfect Simple

ensinar (preterite)
A Carolina ensinou Português a mais de 300 estudantes.
Carolina has taught Portuguese to over 300 students.

Present Perfect Continuous

estar (preterite) > a >  ensinar (infinitive)
A Carolina esteve a ensinar Português durante todo o dia, agora está cansada.
Carolina has been teaching Portuguese all day, so she is tired now.

Here’s the sentence above according to the Brazilan standard *:

estar (preterite) >  ensinar (present participle)
A Carolina esteve ensinando Português durante todo o dia, agora está cansada.
Carolina has been teaching Portuguese all day, so she is tired now.

* Do you want to learn more about the differences between the European and Brazilian standards? Here’s an article for you: European vs. Brazilian Portuguese – How Different Are They Really?

In the examples above, we’ve used a Past tense, namely the preterite, to match the English Present Perfect (in the context of a finished action). Let’s move on and take a closer look at Portuguese Past tenses. 

Complementary reading: Portuguese Present Tenses – Usage Rundown Anchored to English

Portuguese Past tenses

Past tenses are used to refer to actions that have already taken place. For the examples below, I will now be using the regular* verb comer (eat):

	Comer | Preterite Pretérito Perfeito	Comer | Imperfect Pretérito Imperfeito
eu	comi	comia
tu	comeste	comias
ele/ela	comeu	comia
nós	comemos	comíamos
vocês	comeram	comiam
eles/elas	comeram	comiam
Past Participle	comido
Present Participle	comendo

* Learn more about the conjugational patterns of the Past tense:  Portuguese Regular Verbs for the Past Tense.

Past Simple

There are, in Portuguese, two Past tenses* that can map to the English Past Simple, namely the Preterite and the Imperfect.

* In more rigorous terminology, we should say two verb aspects of the Past tense. (there’s only one Past tense)

Preterite – completed actions and punctuality

We use the Preterite when referring to past actions that are completed: 

comer (preterite)
O Joel comeu o pequeno almoço às 7 da manhã.
Joel ate breakfast at 7 am.

As we’ve seen before, we also use the Preterite tense in situations where the English Present Perfect is expressing an action that is complete:  

O Joel comeu pizza esta semana.
Joel has eaten pizza this week.

Imperfect – repetitive actions and continuity

Let’s now take a look at a sentence implying continuity:

comer (imperfect)
Antigamente, o Joel comia peixe três vezes por semana.
Before, Joel ate fish three times a week. 

Note that the above sentence doesn’t denote any complete action. Instead, it portrays something that used to happen, namely that Joel used to eat fish three times every week. In other words, it gives us a picture of how things were before, and, in that way, there is a sense of continuity.

As a rule of thumb, if you can replace the English Past Simple with the structure used to + infinitive while keeping the same time-flow quality, it is then the Imperfect that applies:

Antigamente, o Joel comia carne muito raramente.
Before, Joel used to eat meat very seldom.

Preterite and Imperfect dancing together

More often than not, Preterite and Imperfect are interwoven in the same sentence. Here’s an example:

comer (imperfect) … tocar (preterite)
O Joel comia o seu almoço quando o telefone tocou.
Joel ate lunch when the telephone rang.

The example above has two distinct parts, each with a different verb aspect. In the first part of the sentence – O Joel comia o seu almoço – there is that sense of continuity that we’ve seen above, thus the Imperfect tense. 

Yet, in the second part – … quando o telefone tocou – a sudden, punctual action unfolds (the telephone rings), thus implying completeness. At some point, the telephone rang while Joel was eating his lunch. In that case, the verb appears in the Preterite tense.

Further reading! Read the following article to dive deeper into the usage differences of these two Past tenses: Portuguese Perfect vs. Imperfect Tense: Know When to Use Which.

Past Continuous

The Past Continuous is used to denote ongoing actions in the past.

Like the Present Continuous, it implies continuity and uses estar as the auxiliary verb – this time around conjugated in the Imperfect tense:

	Estar | Imperfect Pretérito Imperfeito
eu	estava
tu	estavas
ele/ela	estava
nós	estavamos
vocês	estavam
eles/elas	estavam

Here’s an example:

estar (imperfect) + a + comer (infinitive) 
O Joel estava a comer o almoço quando alguém bateu à porta.
Joel was eating lunch when someone knocked at the door.

As you already know by now, all continuous tenses look slightly different in the Brazilian standard:

estar (imperfect) + comer (present participle) 
O Joel estava comendo o almoço quando alguém bateu à porta.
Joel was eating lunch when someone knocked at the door.

Now, the sense of continuity implied by the Past Continuous can also be achieved with the imperfect tense alone. In other words, the imperfect and the Past Continuous tenses are often interchangeable:

comer (imperfect)
O Joel comia o almoço quando alguém bateu à porta.
Joel was eating lunch when someone knocked at the door.

Past Perfect

Like the Present Perfect, the Past Perfect tenses use ter as the auxiliary verb, in this case, conjugated in the imperfect tense:

	Ter | Imperfect Pretérito Imperfeito
eu	tinha
tu	tinhas
ele/ela	tinha
nós	tínhamos
vocês	tinham
eles/elas	tinham

Past Perfect Simple

The Past Perfect Simple refers to actions completed before a point in the past. Notice how the Portuguese and English verb structures are similar:

ter (imperfect) + comer (past participle) 
O Joel tinha comido doces pouco antes do jantar.
Joel had eaten sweets just before dinner.

As you can see above, the auxiliary verb is conjugated in the Imperfect tense followed by the Past participle of the main verb.

Portuguese pluperfect tense

In Portuguese, there is also a simple version of the Present Perfect: the Pluperfect tense (Pretérito mais-que-Perfeito). Here’s our main verb in the pluperfect tense (patterned endings italicized):

	Comer | Pluperfect Pretérito mais-que-Perfeito
eu	comera
tu	comeras
ele/ela	comera
nós	comeramos
vocês	comeram
eles/elas	comeram

Accordingly, the Past Perfect used in the sentence above can be replaced with the pluperfect without any essential change in its time flow:

comer (pluperfect) 
O Joel comera doces pouco antes do jantar.
Joel had eaten sweets just before dinner.

Note that there is a subtle difference between the two – the pluperfect is more formal and used less in spoken language.

Past Perfect Continuous

The difference between Past Perfect Simple and Past Perfect Continuous is subtle, but there is still a difference: the latter refers to ongoing actions toward a point in the past. 

Like any other continuous tense, it uses the auxiliary verb estar. Here’s an example:

ter (imperfect) + estar (past participle) + a + comer (infinitive)
O Joel tinha estado a comer doces até à hora do jantar.
Joel had been eating sweets up until it was time for dinner.

Here’s what this continuous tense looks like in Brazilian Portuguese:

ter (imperfect) + estar (past participle) + comendo (present participle)
O Joel tinha estado comendo doces até à hora do jantar.
Joel had been eating sweets up until it was time for dinner.

Complementary reading: Portuguese Past Tenses – Usage Rundown Anchored to English

Portuguese Future tenses

Future tenses are normally used to refer to actions that haven’t taken place yet. 

I will use the verb partir (leave) to exemplify the Future Simple and the Future-in-the-past tenses.

This verb belongs to the third group of regular verbs – its infinitive form ends with -ir. Note that the Future tense shown below is always formed with the same endings (regardless of the verb in question):

	Partir | Future Futuro
eu	partirei
tu	partirás
ele/ela	partirá
nós	partiremos
vocês	partirão
eles/elas	partirão
Past Participle	partido
Present Participle	partindo

Future Simple

Futuro tense

Here’s an example with the Future tense: 

partir (future)
O comboio partirá às 9 da manhã.
The train will leave at 9 am.

Now, this tense is rarely used in daily life. Let’s look at something more colloquial and akin to the English structure be going to.

Ir + infinitive

The verb structure ir+infinitive  is more commonly used in the spoken language compared to the Future tense above. Like the English be going to, we’ll need an auxiliary verb, namely ir (go):

	Ir | Present Presente
eu	vou
tu	vais
ele/ela	vai
nós	vamos
vocês	vão
eles/elas	vão
Past Participle	ido
Present Participle	indo

So, you’re much more likely to see the sentence above expressed this way:

ir (present) > partir (infinitive)
O comboio vai partir às 9 da manhã.
The train is going to leave at 9 pm.

This time, we have the auxiliary verb ir in the Present tense followed by the infinitive form of the main verb, that is, partir.

Importantly, while in English there may be a subtle difference in usage between the future structures will+infinitive and be going to, in Portuguese, the difference between the Future tense (Futuro) and the structure ir+infinitive only concerns the tone –  the latter is more colloquial.

Future in the past

When we talk about the future from a time in the past, we use the Future-in-the-past tense. Like the Future Simple, the Future-in-the-past has two forms in English: would and was going to.

In Portuguese, there are three ways of expressing this tense. Instead of the Future tense, we’ll use either the Conditional or the Imperfect tense. When using the ir+infinitive version, the ir verb will now be conjugated in the Imperfect tense (patterned endings italicized):

	Ir | Imperfect Pretérito Imperfeito	Partir | Imperfect Pretérito Imperfeito	Partir | Conditional Condicional
eu	ia	partia	partiria
tu	ias	partias	partirias
ele/ela	ia	partia	partiria
nós	íamos	partíamos	partiríamos
vocês	iam	partiam	partiriam
eles/elas	iam	partiam	partiriam

Here are three examples, one for each variant:

ir (imperfect) > partir (infinitive)
Eu sabia que o comboio ia partir às 9 da manhã em ponto.
I knew that the train was going to leave at 9 am sharp.

partir (imperfect)
Eu sabia que o comboio partia às 9 da manhã em ponto.
I knew that the train was going to leave at 9 am sharp.

partir (conditional) 
Eu sabia que o comboio partiria às 9 da manhã em ponto.
I knew that the train was going to leave at 9 am sharp.

Notice that the last alternative, the Conditional tense (like the Future tense), is less colloquial than the other alternatives, thus less commonly used in daily life.  

To exemplify the remaining Future tenses, I am now shifting the main verb to aprender (learn), which belongs to the second group of regular verbs (patterned endings italicized):

	Aprender | Present Presente
eu	aprendo
tu	aprendes
ele/ela	aprende
nós	aprendemos
vocês	aprendem
eles/elas	aprendem
Past Participle	aprendido
Present Participle	aprendendo

Future Continuous

The Future Continuous tense indicates that something will occur in the future and continue for an expected length of time. Let’s take a look at two different alternatives, of which the second is more colloquial:

estar (future) > a > aprender (infinitive)
No próximo ano estarei a aprender Árabe no Egito.
Next year I will be learning Arabic in Egypt.

ir (present) > estar (infinitive) > a > aprender (infinitive)
No próximo ano vou estar a aprender Árabe no Egito.
Next year I will be learning Arabic in Egypt.

Because it is a continuous tense, the verb estar is now used as an auxiliary verb: in the first sentence conjugated in the Future tense, and in the second in the infinitive form (as part of the auxiliary compound ir+estar).

As I’ve mentioned, continuous tenses look slightly different in the Brazilian standard, that is, the preposition is left out and the main verb comes in the Present Participle:

estar (future) >  aprender (present participle)
No próximo ano estarei aprendendo Árabe no Egito.
Next year I will be learning Arabic in Egypt.

ir (present) > estar (infinitive) > aprender (present participle)
No próximo ano vou estar aprendendo Árabe no Egito.
Next year I will be learning Arabic in Egypt.

Future Perfect

The Future Perfect tense refers to a completed action in the future.

As in any other perfect tense, we will be using the auxiliary verb ter, this time around conjugated in the Future tense (patterned endings italicized):

	Ter | Future Futuro
eu	terei
tu	terás
ele/ela	terá
nós	teremos
vocês	terão
eles/elas	terão

Here’s an example:

ter (future) > aprender (past participle)
Eu terei aprendido algum Árabe no final do próximo ano.
I will have learned some Arabic by the end of next year.

As you see above, our auxiliary verb (ter) is conjugated in the Future and followed by the main verb (aprender) in the Past Participle.

Interestingly, this tense can also be used to refer to a time in the past, namely when you are supposing that someone has done something or something has happened: 

ter (future) > aprender (past participle)
Ele terá aprendido algum Árabe quando esteve no Egito. 
He may have learned some Arabic when he was in Egypt.

Future Perfect Continuous

The Future Perfect Continuous describes actions that will unfold until a point in the future. As in any other continuous tense, you can count the verb estar into the mix:

ter (future) > estar (past participle) > a > aprender (infinitive)
Em 2023, eu terei estado a aprender Árabe há 3 anos.
In 2013, I will have been learning Arabic for 3 years.

In the sentence above you have the auxiliary compound with ter and estar, followed by the preposition a and the main verb aprender.

Here is the Brazilian Portuguese variant without the preposition and with the main verb in the Present Participle form:

ter (future) > estar (past participle) > aprender (present participle)
Em 2023, eu terei estado aprendendo Árabe há 3 anos.
In 2013, I will have been learning Arabic for 3 years.

Complementary reading: Portuguese Future Tenses – Usage Rundown Anchored to English

Portuguese Passive Voice

We use the passive voice to highlight the recipient of an action, rather than the person or thing that acts. 

In Portuguese, the passive voice is formed with the auxiliary verb ser followed by the Past Participle of the main verb.

Let’s take a look at a few passive voice examples in the Present, Past, and Future tenses.

Present

	Ser | Present Presente
eu	sou
tu	és
ele/ela	é
nós	somos
vocês	são
eles/elas	são
Past Participle	sido
Present Participle	sendo

Besides the auxiliary verb, I will use the same main verb I used to exemplify the Present tenses, that is, ensinar.

Present Simple Passive

Here’s our example:

ser (present) > ensinar (past participle)
O Português é ensinado em França.
Portuguese is taught in France.

As you see, the auxiliary verb (ser) comes in the Present tense and is followed by the Past Participle of the main verb (ensinar). Here’s a common alternative without the auxiliary verb:

ensinar (present, reflexive)
O Português ensina-se em França.
Portuguese is taught in France.

Note that the main verb is now conjugated in the third person of the Present tense and followed by the reflexive pronoun –se.

Learn more about Portuguese reflexive verbs and pronouns: Portuguese Reflexive Verbs and Reflexive Pronoun Placement.

Present Continuous Passive

estar (present) > a > ser (infinitive) > ensinar (past participle)
O Português está a ser ensinado em França.
Portuguese is being taught in France.

As in any other continuous tense, estar is followed by the preposition a, the auxiliary ser (infinitive), and the main verb (past participle). Here’s what it looks like in the Brazilian standard:  

estar (present) > ser (present participle) > ensinar (past participle)
O Português está sendo ensinado em França.
Portuguese is being taught in France.

Past

	Ser | Preterite Pretérito Perfeito
eu	fui
tu	foste
ele/ela	foi
nós	fomos
vocês	foram
eles/elas	foram

Besides the auxiliary ser, I will be using the main verb comer – the same I’ve used to exemplify the Past tenses above.

Past Simple Passive

Let’s take a look at the following example:

ser (preterite) > comer (past participle)
O almoço foi comido às 13h.
Lunch was eaten at 1 pm.

As you can see above, the verb ser comes now in the Preterite tense. The main verb, however, remains in the Past Participle (as in the Present Simple Passive). Here’s the alternative without the auxiliary verb:

O almoço comeu-se às 13h.

In this case, the main verb is conjugated in the third person of the Past tense (Preterite) and followed by the reflexive pronoun –se.

Past Continuous Passive

estar (imperfect) > a > ser (infinitive) > comer (past participle)
O almoço estava a ser comido todos os dias às 13.
Lunch was being eaten every day at 1 pm.

Note that everything looks the same as in the Present Continuous Passive except for the auxiliary estar (which is now in the Imperfect tense). Here’s what the Brazilian standard version looks like:

estar (imperfect) > ser (present participle) > comer (past participle)
O almoço estava sendo comido todos os dias às 13.
Lunch was being eaten every day at 1 pm.

Future

	Ser | Future Futuro
eu	serei
tu	serás
ele/ela	será
nós	seremos
vocês	serão
eles/elas	serão

Finally, the Future Simple Passive. Besides the auxiliary ser, I will use the main verb aprender (the same one I’ve used to exemplify the Future tenses before). Here’s an example:

ser (future) > aprender (past participle)
A lição será aprendida.
The lesson will be learned.

Notice that the auxiliary verb (ser) is now in the Future tense and is followed by the Past Participle of the main verb (aprender). Here’s a colloquial alternative with the auxiliary verb ir:

ir (present) > ser (infinitive) > aprender (past participle)
A lição vai ser aprendida.
The lesson will be learned.

Now we have the auxiliary ir in the Present tense followed by ser in its infinitive form. The main verb, however, comes unaltered in the Past Participle as before.

Portuguese equivalents of English Conditionals

A conditional sentence contains a main clause and a if-clause as in the sentence I would travel around the world if I were rich.

Let’s take a look at different English conditional sentences and see what the Portuguese equivalents look like.

First Conditional – Realistic

In conditional sentences with a likely outcome, we use the Future Subjunctive in the if-clause and, in the main one, the Future Indicative (often in its colloquial version with the auxiliary verb ir). 

These conditional sentences occur, for example, when someone gives advice. 

In our examples, we’ll use the verb comer (eat).  Let’s first look at what the Future Subjunctive looks like:  

	Comer | Future Subjunctive Futuro do conjuntivo
eu	comer
tu	comeres
ele/ela	comer
nós	comermos
vocês	comerem
eles/elas	comerem

Here’s an example of a conditional sentence with a likely outcome:

comer (future subjunctive) . . . perder (future indicative)
Se comeres menos vais perder peso.
If you eat less, you will lose weight.

Second Conditional – Unrealistic

In conditional sentences expressing wishful thinking, thought experiments, and suppositions, we use the Imperfect Subjunctive in the if-clause. In the main clause, we use the Imperfect Indicative. 

Here’s what our verb comer  looks like in the Imperfect Subjunctive:  

	Comer | Imperfect subjunctive Pretérito Imperfeito do Conjuntivo
eu	comesse
tu	comesses
ele/ela	comesse
nós	comessemos
vocês	comessem
eles/elas	comessem

And here’s an example:

comer (imperfect subjunctive) . . . perder (imperfect indicative) 
Se comesses menos de 1000 calorias diárias perdias peso mais rápido.
If you ate less than 1000 calories a day, you would lose weight faster.

As you see, the English verb structure would + infinitive corresponds to the Imperfect tense of the Indicative mood.

Alternatively, you could use the Conditional tense mentioned above (when discussing the “Future in the past”). Here’s our verb in the Conditional tense (this tense always takes the same endings, regardless of the verb in question. Patterned endings are italicized):

	Perder | Conditional Condicional
eu	perderia
tu	perderias
ele/ela	perderia
nós	perderíamos
vocês	perderiam
eles/elas	perderiam

Note that there is a slight change in the tone when we use the Conditional instead of the Imperfect tense –  the latter is more colloquial and commonplace. Otherwise, there’s no substantial difference:

comer (imperfect, subjunctive) . . . perder (condicional)
Se comesses menos de 1000 calorias diárias perderias peso mais rápido.
If you ate less than 1000 calories a day, you would lose weight faster.

Third Conditional – A lost cause

Finally, there are conditionals expressing situations where something has already happened and it is too late to do something about it. 

In this case, the if-clause takes the auxiliary verb ter in the Imperfect Subjunctive plus the main verb in the Past Participle. In the main clause, the verb is in the Imperfect Indicative. 

Let’s see what the auxiliary verb ter looks like in the Imperfect Subjunctive (patterned endings italicized):

	Ter | Imperfect Subjunctive Pretérito Imperfeito do Conjuntivo
eu	tivesse
tu	tivesses
ele/ela	tivesse
nós	tivéssemos
vocês	tivessem
eles/elas	tivessem

Let’s take an example:

ter (imperfect, subjunctive) + comer (past participle) . . . estar (imperfect)
Se não tivesses comido tanto agora não estavas mal-disposto.
If you had not eaten so much, you wouldn’t have felt sick now.

As in the Second Conditional, you could use the Conditional tense in the main clause instead of the Imperfect:

ter (imperfect, subjunctive) + comer (past participle) . . . estar (conditional)
Se não tivesses comido tanto agora não estarias mal-disposto.
If you had not eaten so much, you wouldn’t have felt sick now.

Portuguese Imperative

The Imperative mood is used to give commands. In Portuguese, the verb form will vary depending on whether you adopt a casual or formal tone. Also, the casual has different forms conforming to either affirmative or negative sentences.

Whatever the situation is, you’ll always find the correspondent verb form in the Present tense of the verb in question, either in its Indicative or Subjunctive mood. 

To exemplify the nuances of the Portuguese Imperative, I will be using the verb beber (drink).
(The same principles apply to any other verb).  

		Beber (Present tense)
	Indicative mood	Subjunctive mood
eu	bebo	beba Formal
tu	bebes	bebas Casual negative
ele/ela	bebe Casual affirmative	beba
nós	bebemos	bebamos
vocês	bebem	bebam
eles/elas	bebem	bebam Plural

Casual Imperative

If the context is informal, we use the third-person singular of the Indicative mood:

Bebe água.
Drink water.

However, if it is a negative sentence, we use the second-person singular of the Subjunctive mood:

Não bebas água.
Don’t drink water.

Formal Imperative

When the setting is formal, we use the first person singular (or third, as they are the same) of the Subjunctive mood:

Beba água.
Drink water.

Não beba água.
Don’t drink water.

Plural Imperative

Finally, when talking to a group of people, we use the same verb form regardless of the tone and whether the sentence is in the affirmative form or not, that is, the third person plural of the Subjunctive mood:

Bebam água.
Drink water.

Não bebam água.
Don’t drink water.

Further reading! Delve deeper into the Imperative mood: Here’s How You Conjugate the Imperative in Portuguese.