"Complex grammar" in European Portuguese covers the structures that go beyond single clauses: combinations of clauses, rearrangements of information, and reduced or elliptical structures that omit what English would spell out. These are the constructions that separate intermediate from advanced learners. They are not optional: once you move past "I want to learn Portuguese" and start trying to say "Had I known the train was delayed, I would've left earlier," you need the tools in this group.
This overview is a map. It sketches each topic, shows one or two representative examples, and links to the dedicated page where the topic is worked out in full. Read it end to end to get a feel for the whole territory; return to it when you need to remember where a particular structure lives.
1. Conditional sentences (se-clauses)
The se-clause ("if-clause") is the single most important complex structure in Portuguese, because it forces you to coordinate tenses across two clauses and because it introduces the future subjunctive — a tense Spanish has essentially lost and that English has no equivalent for.
Portuguese distinguishes three classes of conditional:
| Type | If-clause tense | Main-clause tense | Meaning |
|---|---|---|---|
| Open (real, future) | future subjunctive | future / present / imperative | If X happens, Y will happen |
| Contrary-to-fact present | imperfect subjunctive | conditional | If X were the case (but it isn't), Y would be |
| Contrary-to-fact past | pluperfect subjunctive | conditional perfect | If X had happened (but it didn't), Y would have been |
Se chover amanhã, fico em casa.
If it rains tomorrow, I'll stay home. (open: future subjunctive 'chover')
Se eu tivesse mais tempo, viajava mais.
If I had more time, I'd travel more. (contrary-to-fact present)
Se eu tivesse estudado mais, teria passado no exame.
If I had studied more, I would have passed the exam. (contrary-to-fact past)
A fourth type — mixed conditionals — combines clauses from different time-frames ("Se eu tivesse estudado mais, seria médico hoje" — "If I'd studied more, I'd be a doctor today").
Full details:
- Open Conditional (Future Subjunctive)
- Contrary-to-Fact Present (Imperfect Subjunctive)
- Past Contrary-to-Fact (Pluperfect Subjunctive)
- Mixed Conditionals
- Conditions Without Se
2. Reported speech (discurso indirecto)
Reported speech is the act of relaying what someone else said: direct ("Ela disse: 'Estou cansada'") vs indirect ("Ela disse que estava cansada"). Portuguese reported speech requires:
- Tense shifts: present → imperfect, perfect → pluperfect, future → conditional, and so on
- Pronoun shifts: eu → ele/ela, tu → eu, with accompanying verb adjustments
- Adverb shifts: hoje → nesse dia, aqui → ali, amanhã → no dia seguinte
- Command shifts: imperative → que
- subjunctive, or para
- personal infinitive
- subjunctive, or para
Direct: O João disse: 'Estou doente.'
João said, 'I'm sick.'
Indirect: O João disse que estava doente.
João said he was sick.
Direct: Ela perguntou: 'Onde moras?'
She asked, 'Where do you live?'
Indirect: Ela perguntou onde eu morava.
She asked where I lived.
Direct: O professor disse: 'Estudem mais!'
The teacher said, 'Study more!'
Indirect: O professor disse para estudarmos mais.
The teacher told us to study more.
Full details:
3. Relative clauses
A relative clause modifies a noun by attaching a small clause to it, introduced by a relative pronoun (que, quem, o qual, cujo, onde).
O livro que comprei ontem está em cima da mesa.
The book that I bought yesterday is on the table.
A mulher com quem falei é a diretora.
The woman I spoke with is the director.
A razão pela qual ele saiu é desconhecida.
The reason for which he left is unknown. (formal)
O homem cuja casa ardeu perdeu tudo.
The man whose house burned down lost everything.
European Portuguese distinguishes restrictive relatives (no commas, identifies the noun) from non-restrictive ones (commas, adds extra information). It uses a range of prepositions before relatives, and it has a formal written alternative (o qual, a qual, os quais, as quais) that disambiguates in complex sentences where que would be opaque.
Full details:
4. Cleft sentences (focus constructions)
Cleft sentences break a simple sentence into two parts to highlight one element. Portuguese has two cleft types:
- É ... que / é ... quem (regular cleft — focuses subject, object, or adverbial)
- Pseudo-cleft (o que X faz é Y — "what X does is Y")
Foi o João que partiu o copo. (not someone else)
It was João who broke the glass.
É em Lisboa que eles vivem.
It's in Lisbon that they live.
O que eu quero é sossego.
What I want is peace and quiet.
The cleft is one of Portuguese's most expressive tools for marking emphasis and contrast without intonation — a syntactic workaround for the fact that clitics and unstressed words cannot easily carry prosodic stress.
Full details:
5. Concessive clauses (embora, apesar de, mesmo que)
Concessive clauses express "although, even though, despite." They introduce a circumstance that would lead you to expect one outcome, and then announce a different one.
| Connector | Mood | Meaning |
|---|---|---|
| embora | subjunctive | although |
| ainda que | subjunctive | even if, even though |
| mesmo que | subjunctive | even if |
| apesar de (+ infinitive) | personal infinitive | despite |
| se bem que | indicative (often) | although |
Embora estivesse a chover, saímos a passear.
Although it was raining, we went out for a walk.
Apesar de ser tarde, ele ainda estava a trabalhar.
Despite it being late, he was still working.
Full details: Concessive Clauses
6. Temporal clauses
Clauses introduced by quando, antes de, depois de, até, assim que, logo que, enquanto, sempre que. The mood choice depends on whether the action is realized or future/hypothetical:
- Future, hypothetical → future subjunctive: quando chegares, avisa-me
- Habitual or past → indicative: quando chega, avisa sempre
Quando tiveres tempo, liga-me.
When you have time, call me. (future subjunctive)
Sempre que vou ao Porto, visito-os.
Whenever I go to Porto, I visit them. (habitual indicative)
Assim que soubermos, dizemos-te.
As soon as we know, we'll tell you. (future subjunctive)
Antes de saíres, fecha as janelas.
Before you leave, close the windows. (personal infinitive)
Full details: Temporal Clauses
7. Causal clauses
Clauses of cause: porque, como, visto que, dado que, já que, uma vez que, pois.
Não fui à festa porque estava cansado.
I didn't go to the party because I was tired.
Como não chovia, decidimos passear.
Since it wasn't raining, we decided to go for a walk. (sentence-initial 'como')
Visto que já tinham saído, fui-me embora.
Given that they had already left, I went home. (formal)
Full details: Causal Clauses
8. Purpose clauses (para que, a fim de que)
Clauses that express purpose take the subjunctive if subjects differ; otherwise the personal infinitive:
Liguei o aquecedor para que a sala ficasse quente.
I turned on the heater so the room would get warm.
Estudo muito para passar no exame.
I study a lot to pass the exam. (same subject — infinitive)
Estudo muito para os meus pais ficarem orgulhosos.
I study a lot for my parents to be proud. (different subjects — personal infinitive)
Full details: Purpose Clauses
9. Result clauses (tão... que, tanto... que)
Result clauses follow a degree word (tão, tanto) and describe the consequence:
Ele estava tão cansado que adormeceu no sofá.
He was so tired that he fell asleep on the sofa.
Chove tanto que as ruas estão alagadas.
It's raining so much that the streets are flooded.
Comprou tantos livros que não sabe onde os pôr.
He bought so many books that he doesn't know where to put them.
Full details: Result Clauses
10. Comparative structures (mais/menos ... do que, tão ... como)
Portuguese comparisons use do que for "than" and como for "as":
Ele é mais alto do que o irmão.
He's taller than his brother.
Este restaurante é tão bom como aquele.
This restaurant is as good as that one.
Quanto mais o ouço, menos o entendo.
The more I listen to him, the less I understand him. (correlative)
Full details:
11. Causative constructions (fazer / mandar / deixar + infinitive)
One subject causes another to do something:
Ela fez o filho comer a sopa.
She made her son eat the soup.
Mandei pintar a casa.
I had the house painted.
O professor deixou os alunos sair mais cedo.
The teacher let the students leave earlier.
The embedded infinitive behaves differently depending on whether fazer, mandar, or deixar is used, and on whether the caused action has an explicit subject or object.
Full details: Causative Constructions
12. Perception verb constructions (ver / ouvir / sentir + infinitive)
Similar to causatives: perception verbs embed an infinitive with its own subject:
Ouvi-os cantar até altas horas.
I heard them singing until late hours.
Vi-a sair do prédio por volta das oito.
I saw her leave the building around eight.
Senti-o abraçar-me com força.
I felt him hug me tightly.
Full details: Perception Verbs
13. Infinitive clauses and reduced structures
The personal infinitive is Portuguese's distinctive feature: an infinitive with personal endings (falar, falares, falar, falarmos, falardes, falarem). It allows Portuguese to compress what would otherwise require a full subjunctive clause:
É importante estudarmos todos os dias.
It's important for us to study every day.
Lamento teres saído cedo.
I'm sorry you left early.
Depois de eles chegarem, começamos a jantar.
After they arrive, we'll start dinner.
This allows for extreme concision that Spanish (which lacks the personal infinitive) must render with full subjunctive clauses.
Full details:
14. Absolute constructions
Reduced clauses that stand outside the main sentence, usually at the start, providing background or frame:
Chegado a casa, tirou os sapatos e sentou-se.
Having arrived home, he took off his shoes and sat down. (past participle absolute)
Aberta a janela, entrou uma brisa agradável.
The window open, a pleasant breeze came in.
Começando agora, acabamos a tempo.
Starting now, we'll finish in time. (gerund absolute)
Full details: Absolute Constructions
15. Topicalization and left-dislocation
Fronting a phrase — noun, pronoun, clause — to the start of the sentence, often doubled inside by a clitic:
A mim não me interessa nada.
To me, nothing is of interest. (pronoun topic)
Esse livro já o li.
That book, I've already read it. (object topic with clitic 'o')
De comida portuguesa, gosto de tudo.
Portuguese food — I like all of it.
Topicalization signals that the fronted element is the topic — what the sentence is about — while the rest of the clause is the comment.
Full details: Topicalization
16. Ellipsis
Portuguese allows extensive omission of elements recoverable from context, especially verbs in parallel structures:
Eu vou para o norte, ele para o sul.
I'll go north, he [will go] south. (verb ellipsis)
O João fala inglês; o Pedro, francês.
João speaks English; Pedro, French.
Full details: Ellipsis
17. Noun complement clauses (a ideia de que, o facto de que)
Some nouns take a que-clause as a complement, often with a preposition:
A ideia de que o mundo vai acabar é absurda.
The idea that the world will end is absurd.
O facto de ele ter mentido mudou tudo.
The fact that he lied changed everything. (note: personal infinitive after 'de')
Tenho a esperança de que eles cheguem a tempo.
I have hope that they will arrive on time.
Full details: Noun Complement Clauses
18. Appositive clauses
Relative-like clauses that rename or redefine a noun:
O Pedro, que é médico, mora em Coimbra.
Pedro, who is a doctor, lives in Coimbra. (non-restrictive)
Lisboa, capital de Portugal, é uma cidade antiga.
Lisbon, the capital of Portugal, is an ancient city.
Full details: Appositive Clauses
19. Advanced passive constructions
Besides the simple passive (ser + past participle), Portuguese has:
- Impersonal passive with se: "vendem-se casas"
- Resultant passive with estar: "a porta está fechada" (state) vs "a porta é fechada" (action)
- Passive infinitive: "o problema a ser resolvido"
A casa foi construída em 1920.
The house was built in 1920. (standard passive)
Vendem-se livros usados.
Used books for sale. (se-passive)
As janelas estão abertas.
The windows are open. (resultant state)
Full details: Advanced Passive
20. Subjunctive in main clauses
Although typically triggered by a subordinator, the subjunctive can appear in main clauses to express wishes, orders, or hypotheses:
Viva Portugal!
Long live Portugal! (present subjunctive main-clause wish)
Venha o que vier.
Come what may. (future subjunctive fixed expression)
Que Deus te proteja.
May God protect you.
Full details: Subjunctive in Main Clauses
21. Double negation
Portuguese permits (in fact, requires) double negation in many contexts:
Não vi ninguém.
I didn't see anyone. (literally: I didn't see nobody.)
Nunca digo nada a ninguém.
I never tell anything to anyone.
Unlike in standard English, double negation reinforces rather than cancels — the default reading is negative.
Full details: Double Negation
22. Sequence of tenses
Coordinating tenses across clauses — especially in reported speech and conditional chains — follows consistent patterns:
Disse que ia ao mercado. (imperfect in reported speech after past verb)
He said he was going to the market.
Se tivesse sabido, teria ido. (pluperfect subjunctive → conditional perfect)
If I had known, I would have gone.
Full details: Sequence of Tenses
23. Raising and control structures
Cross-clausal phenomena where the subject or object of one clause is interpreted as belonging to another:
Parece chover lá fora.
It seems to be raining outside. (raising: parece raises to impersonal)
O João parece estar feliz.
João seems to be happy. (subject-raising: 'João' is logically the subject of 'estar feliz')
Tentei comer o bolo todo.
I tried to eat the whole cake. (control: 'I' is subject of both 'tentei' and 'comer')
Full details: Raising and Control
24. Literary grammar
Portuguese literary language uses constructions rare in speech — extended mesóclise, archaic pronoun placement, full use of vós, complex participial absolutes, and inverted word order:
Viver-se-á um dia em paz.
One day we shall live in peace. (impersonal se + mesóclise, literary)
Sabido isto, podemos prosseguir.
That being known, we can proceed. (participial absolute)
Full details: Literary Grammar
25. Register shifting
The same idea can be expressed across multiple registers. Recognizing which register fits which context is part of advanced competence:
| Register | Example |
|---|---|
| (informal spoken) | Se calhar ele vem. |
| (neutral written) | Talvez ele venha. |
| (formal) | É possível que ele venha. |
| (literary) | Ventura virá ele. |
Full details: Register Shifting
How to approach this group
Complex grammar is best learned tune by tune, not all at once. A reasonable path:
- Start with conditionals (se-clauses). They are omnipresent and teach you the future subjunctive, which unlocks temporal and relative clauses as well.
- Then reported speech. Tense shifts repay study — they apply to any kind of embedded speech or thought.
- Then the personal infinitive in reduced clauses (antes de saírem, para ele fazer). This is the single most distinctive feature of Portuguese syntax.
- Then clefts and topicalization. These unlock native-like emphasis and information structure.
- Then concessives, causals, temporal clauses — in whichever order matches what you are reading or writing.
- Finally, literary grammar and register shifting, which are the marks of genuine stylistic control.
Comparison with Spanish
Spanish and Portuguese share most of the complex grammar inventory — conditionals, reported speech, relatives, clefts, causatives. The three major divergences:
- Future subjunctive: alive and mandatory in Portuguese conditionals (se puder), essentially dead in modern Spanish.
- Personal infinitive: exists in Portuguese (para eu ir); does not exist in Spanish.
- Mesóclise: exists in formal Portuguese (dir-lhe-ei); does not exist in Spanish.
These three features make Portuguese complex grammar look alien to Spanish speakers until they get used to it — but they also give Portuguese tools that Spanish has to express more laboriously.
Comparison with English
English complex grammar is simpler in most ways (no subjunctive chains, no personal infinitive, less reliance on clefts) but has its own complexities (modals, sequence of tenses, gerund-vs-infinitive distinctions) that Portuguese does not share. English learners of Portuguese typically struggle most with:
- Knowing when to use indicative vs subjunctive
- Coordinating tenses in conditionals and reported speech
- Using clitics in complex clauses (especially mesóclise)
- Topicalization as a routine device (English uses intonation instead)
Common Mistakes
Mistake 1: Using the present instead of the future subjunctive in se-clauses
❌ Se tenho tempo amanhã, telefono-te.
Incorrect — 'se' + future event requires future subjunctive.
✅ Se tiver tempo amanhã, telefono-te.
If I have time tomorrow, I'll call you.
Mistake 2: Forgetting tense shifts in reported speech
❌ Ele disse que está cansado. (narrating a past event)
Mismatched — past reporting verb requires tense shift.
✅ Ele disse que estava cansado.
He said he was tired.
Mistake 3: Dropping the clitic after topicalization
❌ Esse livro já li.
Incorrect — topicalized object requires clitic 'o'.
✅ Esse livro já o li.
That book, I've already read it.
Mistake 4: Using infinitive where personal infinitive is required
❌ Antes de eles chegar, começamos.
Incorrect — different subject in embedded clause requires personal infinitive.
✅ Antes de eles chegarem, começamos.
Before they arrive, we'll start.
Mistake 5: Using indicative after embora
❌ Embora está a chover, saímos.
Incorrect — 'embora' requires subjunctive.
✅ Embora esteja a chover, saímos.
Although it's raining, we're going out.
Mistake 6: Mixing up porque (cause) and porquê (interrogative noun)
❌ Ele não veio porquê estava doente.
Incorrect — use 'porque' (unaccented) to introduce a cause.
✅ Ele não veio porque estava doente.
He didn't come because he was sick.
✅ Não sei o porquê da ausência dele.
I don't know the reason for his absence. (noun 'porquê')
Key Takeaways
- Complex grammar is about combining, reducing, and rearranging clauses.
- The future subjunctive, personal infinitive, and mesóclise are the three most distinctive Portuguese features within this group.
- Mood selection (indicative vs subjunctive vs personal infinitive) is driven by the connector — memorize connector → mood pairings.
- Topicalization and clefts are core expressive tools, not stylistic flourishes.
- The dedicated pages in this group give you the depth; this overview gives you the map.
- Approach the group one structure at a time, in the order suggested above, and pair study with regular reading of authentic texts.
From here, follow any link that matches what you need to say today. Every page in this group is designed to leave you able to produce the structure correctly in speech and writing — not just to recognize it.
Related Topics
- Open/Real Conditional Clauses (Se + Future Subjunctive)B1 — Real, possible conditions in Portuguese use se + future subjunctive, not the present indicative as in English.
- Unreal Present Conditions (Se + Imperfect Subjunctive)B1 — Contrary-to-fact present conditions in Portuguese use se + imperfect subjunctive with the conditional — or in colloquial speech, the imperfect indicative.
- Reported Speech OverviewB1 — Converting direct speech to indirect speech in European Portuguese — the five shifts (que, pronouns, tenses, adverbs, questions) and the verbs that introduce reported speech.
- Relative Clauses OverviewA2 — How relative clauses work in European Portuguese — que, quem, o qual, cujo, onde, and the restrictive vs non-restrictive distinction.
- Cleft Sentences (É Que)B1 — Splitting a sentence to spotlight one element — é que, foi que, é o que, pseudo-clefts, and the colloquial que é inversion.
- Concessive Clauses (Embora, Apesar De, Mesmo Que)B1 — Saying although/even though/despite in Portuguese — the family of conjunctions that pair with the subjunctive, the infinitive, or (rarely) the indicative.