C1 Sentence Structure 8 min read Medium

The 'SE' Passive: Professional Portuguese (Voz Passiva Sintética)

The Synthetic Passive makes you sound professional by focusing on the object, provided your verb agrees with the subject.

Grammar Rule in 30 Seconds

Use 'se' with a transitive verb to create a passive voice where the object becomes the grammatical subject.

  • The verb must agree with the patient (the thing being acted upon): 'Vendem-se casas'.
  • Only transitive verbs (VTD) can form this passive: 'Alugam-se apartamentos'.
  • If the subject is singular, the verb is singular: 'Vende-se uma casa'.
Object + Verb (agreed) + se

Overview

Ever walked past a dusty window in Lisbon and seen a sign saying Vende-se? Or maybe you were scrolling through a Brazilian real estate app and saw Alugam-se apartamentos? If you thought the 'se' was just for reflexive actions like washing yourself, you are in for a treat.

This is the Voz Passiva Sintética. It is the secret weapon of Portuguese speakers who want to sound professional, concise, and slightly mysterious. It allows you to focus on the action or the object without mentioning who is doing the work.

Think of it as the 'professional mode' of the language. It is everywhere: in formal emails, news headlines, and those tiny 'help wanted' signs at your favorite bakery. If you want to reach C1 level, you cannot just recognize it.

You need to master the agreement rules that even native speakers trip over. It is like the difference between saying 'I am selling cars' and 'Cars for sale.' One is about you; the other is about the business.

Portuguese has two ways to build the passive voice. You likely already know the analytic version: O livro foi escrito (The book was written). That is easy because it looks like English.

But the Voz Passiva Sintética (also called Passiva Pronominal) is much more 'Portuguese.' It uses the pronoun se attached to a transitive verb. It is shorter. It is punchier.

It is perfect for when the 'who' does not matter. Use it when you want to describe a state of affairs or a service. It is the language of advertisements and formal reports.

It makes your writing look polished and academic. Just do not use it when you are gossiping with friends about who ate the last brigadeiro. That requires a more direct approach.

Unless, of course, you want to sound like a lawyer at a party. 'Consumiu-se o último brigadeiro.' Very dramatic. Very mysterious.

Very C1.

Word Order Rules

In its most basic form, the order is Verb-se + Subject. For example: Vende-se (Verb) + casa (Subject). Notice how the 'se' is glued to the back of the verb with a hyphen.
This is called enclisis. In European Portuguese, this is the standard for starting a sentence. In Brazil, you might hear people say Se vende casa in spoken language, but for your C1 exam or a formal email, stick to the hyphen.
If you have a 'magnetic' word before the verb, the se jumps to the front. These 'magnets' include negative words like não or nunca, and adverbs. So, Não se vendem casas is the correct way to say houses are not being sold.
The subject (the thing being sold, rented, or built) usually comes after the verb. However, in more literary or formal contexts, you might see Casas vendem-se. It feels a bit like a Yoda sentence, but it is grammatically sound.
Just remember: the se is the star, and it likes its position to be just right.

How This Grammar Works

The magic happens when the object of a sentence becomes the subject. Imagine the sentence: O governo aprovou a lei (The government approved the law). To turn this into the synthetic passive, we drop the government.
We take the verb aprovar, add se, and keep a lei. Result: Aprovou-se a lei (The law was approved). The most important thing to understand is that a lei is now the subject.
Why does this matter? Because of agreement! If the government approves multiple laws, you must say Aprovaram-se as leis.
This is the single biggest trap for learners. Because the subject comes after the verb, your brain thinks it is an object. It is not.
The verb must dance to the tune of the noun that follows it. If the noun is plural, the verb must be plural. If you miss this, you will sound like a tourist, and we are aiming for 'local expert' status here.
Think of the se as a mirror. It reflects the action back onto the thing being discussed.

Formation Pattern

1
Creating this structure follows a very logical set of steps. Follow these to avoid the common pitfalls:
2
Choose a Transitive Direct Verb. This is a verb that takes an object without a preposition (like comprar, fazer, vender).
3
Conjugate the verb in the third person (singular or plural).
4
Match the conjugation to the patient (the thing receiving the action).
5
Attach the pronoun se using a hyphen (unless a 'magnet' word is present).
6
For example, let's use enviar (to send) for 'the documents'. The documents are plural (os documentos). So, we use the third person plural of enviar: enviaram. Add the se: Enviaram-se os documentos. Easy, right? It works in any tense. Vendeu-se (past), Vender-se-á (future - though this is very formal/literary), Vende-se (present). The logic remains the same. If you are using a compound tense, the se usually hangs out with the auxiliary verb: Têm-se feito muitas críticas (Many criticisms have been made). Just don't try to use this with verbs that need a preposition like gostar de. That is a different rule called the Indeterminate Subject, and the verb never goes to the plural there. Keep your transitives direct, and you will be golden.

Pattern Variations

While the basic pattern is steady, life likes to throw curveballs. When you use this in different tenses, things get spicy. In the future tense, Portuguese uses something called mesoclisis in very formal writing.
You might see Vender-se-ão as casas. It looks like a typo, but it is actually the se sandwiched inside the verb. You will mostly see this in old books or legal documents.
In modern Brazilian Portuguese, this is virtually extinct in speech, but it is a fun flex for a C1 student. Another variation is the use of the se with modal verbs like poder or dever. You would say Podem-se ver as estrelas (The stars can be seen).
Notice again: estrelas is plural, so podem is plural. If you are writing a script for a Netflix show set in the 1800s, go wild with these variations. If you are texting a friend about a party, maybe stick to the simpler forms.
Even a C1 genius needs to know when to keep it casual.

Real Conversations

Let's see how this looks in the wild. Imagine you are at a business meeting in São Paulo.

D

Director

Já se decidiram as novas metas? (Have the new goals been decided yet?)
M

Manager

Sim, anunciaram-se as mudanças ontem no Slack. (Yes, the changes were announced yesterday on Slack.)

Notice how they don't say who decided or who announced. It's all about the goals and the changes. Now, imagine you are looking for an apartment in Porto.

Y

You

Vi o anúncio. Ainda se alugam aqueles quartos? (I saw the ad. Are those rooms still being rented?)
L

Landlord

Infelizmente não. Alugou-se o último esta manhã. (Unfortunately no. The last one was rented this morning.)

In both cases, the synthetic passive makes the speaker sound professional and direct. It's the language of efficiency. In a world of Zoom calls and busy schedules, who has time to mention the subject every time? Not you. You've got places to be and Portuguese to master.

Common Mistakes

The 'Agreement Monster' is the most common visitor here. Many people say Aluga-se apartamentos. Wrong! Since apartamentos is plural, it must be Alugam-se apartamentos. This is the mistake that makes Portuguese teachers cry. Another classic error is using the synthetic passive with verbs that require a preposition. You cannot say Tratam-se de problemas ❌. Because of the de, this is not a passive voice; it's an indeterminate subject. The correct form is Trata-se de problemas ✅ (always singular). Also, watch out for the 'Magnet Words.' If you say Não vendeu-se a casa, you are breaking a cardinal rule of placement. It must be Não se vendeu a casa. Negatives are powerful magnets; they always pull the se to the front. Finally, don't overdo it. If you use the synthetic passive in every single sentence, you'll sound like a talking law textbook. Mix it up with active sentences to keep your speech natural.

Quick FAQ

Q

Can I use this with any verb?

No. Only with Transitive Direct verbs (verbs that don't need a preposition like 'de' or 'a').

Q

Is it more common in Portugal or Brazil?

It's common in both for writing and formal speech, but European Portuguese uses the Verb-se order more strictly in speech.

Q

What is the difference between Vende-se casas and Vendem-se casas?

Vende-se casas is a very common mistake. Vendem-se casas is the grammatically correct version because the verb must agree with the plural subject.

Q

Can I use it in the past tense?

Absolutely! Comprou-se o carro means 'The car was bought.'

Q

Why not just use the analytic passive (foi vendido) instead?

You can, but the synthetic version is more common for signs, advertisements, and formal reports. It sounds more native and concise.

Passive 'Se' Agreement

Object Number Verb Person Example Translation
Singular
3rd Person Singular
Vende-se a casa
The house is sold
Plural
3rd Person Plural
Vendem-se as casas
The houses are sold
Singular
3rd Person Singular
Aluga-se o carro
The car is rented
Plural
3rd Person Plural
Alugam-se os carros
The cars are rented

Meanings

A construction used to express passive voice without mentioning the agent, focusing entirely on the action or the object.

1

Passive voice

The object of the action becomes the subject of the sentence.

“Vendem-se flores.”

“Alugam-se quartos.”

2

Impersonal passive

Used with intransitive or prepositional verbs where the subject is indeterminate.

“Vive-se bem aqui.”

“Precisa-se de funcionários.”

Reference Table

Reference table for The 'SE' Passive: Professional Portuguese (Voz Passiva Sintética)
Form Structure Example
Affirmative
Verb + se + Object
Vendem-se livros
Negative
Não + se + Verb + Object
Não se vendem livros
Interrogative
Verb + se + Object?
Vendem-se livros?
Impersonal
Verb (3rd sing) + se + Prep
Precisa-se de ajuda
Past Tense
Verb (past) + se + Object
Venderam-se os livros
Future Tense
Verb (future) + se + Object
Vender-se-ão os livros

Formality Spectrum

Formal
Vende-se esta residência.

Vende-se esta residência. (Real estate)

Neutral
Vende-se esta casa.

Vende-se esta casa. (Real estate)

Informal
Tô vendendo a casa.

Tô vendendo a casa. (Real estate)

Slang
Passando a casa pra frente.

Passando a casa pra frente. (Real estate)

Passive 'Se' Logic

Voz Passiva Sintética

Agreement

  • Singular Singular verb
  • Plural Plural verb

Constraint

  • Transitive Must be VTD

Examples by Level

1

Aluga-se casa.

House for rent.

2

Vende-se carro.

Car for sale.

3

Conserta-se sapato.

Shoes repaired.

4

Faz-se chave.

Keys made.

1

Vendem-se casas aqui.

Houses are sold here.

2

Não se vendem ingressos.

Tickets are not sold.

3

Aceitam-se cartões.

Cards are accepted.

4

Procura-se funcionário.

Employee wanted.

1

Discutiram-se os problemas.

The problems were discussed.

2

Publicaram-se os resultados.

The results were published.

3

Fizeram-se alterações no plano.

Changes were made to the plan.

4

Notaram-se erros no relatório.

Errors were noted in the report.

1

Observaram-se mudanças climáticas.

Climate changes were observed.

2

Comentaram-se as novas leis.

The new laws were commented on.

3

Aprovaram-se as medidas de segurança.

The safety measures were approved.

4

Anunciaram-se novas vagas.

New positions were announced.

1

Constataram-se irregularidades no processo.

Irregularities were found in the process.

2

Reivindicaram-se direitos fundamentais.

Fundamental rights were claimed.

3

Identificaram-se falhas estruturais.

Structural flaws were identified.

4

Implementaram-se estratégias de mitigação.

Mitigation strategies were implemented.

1

Depreenderam-se conclusões lógicas do estudo.

Logical conclusions were inferred from the study.

2

Ratificaram-se os tratados internacionais.

The international treaties were ratified.

3

Submeteram-se as propostas à análise.

The proposals were submitted for analysis.

4

Divulgaram-se os dados preliminares.

The preliminary data were released.

Easily Confused

The 'SE' Passive: Professional Portuguese (Voz Passiva Sintética) vs Reflexive Se

Learners confuse the passive 'se' (things done to objects) with reflexive 'se' (people doing things to themselves).

The 'SE' Passive: Professional Portuguese (Voz Passiva Sintética) vs Impersonal Se

Learners try to pluralize the verb in impersonal constructions.

The 'SE' Passive: Professional Portuguese (Voz Passiva Sintética) vs Analytical Passive

Learners mix up 'ser + participle' with 'se + verb'.

Common Mistakes

Vende-se casas

Vendem-se casas

The verb must agree with the plural object.

Alugam-se casa

Aluga-se casa

Verb must match singular object.

Se vende casas

Vendem-se casas

Particle placement is usually post-verb in formal writing.

Precisa-se de funcionários

Precisam-se de funcionários

Wait, this is actually wrong! 'Precisa-se' is correct because it's impersonal.

Faz-se bolos

Fazem-se bolos

Plural object requires plural verb.

Não vendem-se casas

Não se vendem casas

Negative particle pulls 'se' to the front.

Consertam-se sapato

Conserta-se sapato

Singular object.

Acredita-se em milagres

Acredita-se em milagres

Correct, but learners often try to pluralize.

Alugam-se apartamentos

Alugam-se apartamentos

Correct, but learners often forget the 'se'.

Vende-se os carros

Vendem-se os carros

Agreement error.

Submeteu-se as propostas

Submeteram-se as propostas

Agreement error with complex subjects.

Identificou-se falhas

Identificaram-se falhas

Agreement error.

Constatou-se irregularidades

Constataram-se irregularidades

Agreement error.

Ratificou-se os tratados

Ratificaram-se os tratados

Agreement error.

Sentence Patterns

___-se ___.

___-se ___ aqui.

Não se ___ ___.

___-se ___ no relatório.

Real World Usage

Real estate signs constant

Aluga-se apartamento.

Job postings very common

Procura-se gerente.

News headlines common

Anunciam-se novas medidas.

Shop signs common

Consertam-se relógios.

Academic papers common

Observaram-se resultados positivos.

Social media (formal) occasional

Aceitam-se encomendas.

💡

Check the object

Always look at the noun after the verb. If it's plural, your verb must be plural.
⚠️

Don't use with VTI

If the verb needs a preposition (like 'precisar de'), do not pluralize the verb.
🎯

Use for professional tone

This construction makes your writing sound much more objective and professional.
💬

Regional variation

In Brazil, spoken language often prefers 'a gente' or active voice, so save this for writing.

Smart Tips

Always check the number of the object.

Vende-se casas Vendem-se casas

Never pluralize the verb.

Precisam-se de funcionários Precisa-se de funcionários

Use the passive 'se' to sound objective.

Nós vimos erros Viram-se erros

If you are unsure, use the analytical passive.

Vende-se casas As casas são vendidas

Pronunciation

si

The 'se' particle

Pronounced as /si/ in Brazil and /sɨ/ in Portugal.

Falling intonation

Vende-se a casa ↘

Statement of fact.

Memorize It

Mnemonic

Think of 'se' as a mirror: it reflects the object back onto the verb.

Visual Association

Imagine a shop window with a sign that changes size. If one item is inside, the sign is small (singular). If many items are inside, the sign grows (plural).

Rhyme

Se o objeto é plural, o verbo deve acompanhar, se é singular, o verbo não vai mudar.

Story

A shopkeeper is very precise. He counts his items every morning. If he has one chair, he writes 'Vende-se cadeira'. If he has ten, he quickly adds an 'm' to the verb: 'Vendem-se cadeiras'. He never makes a mistake because he loves order.

Word Web

Vende-seVendem-seAluga-seAlugam-sePrecisa-seFaz-se

Challenge

Find three signs in your city or online (e.g., 'Aluga-se', 'Vende-se') and check if the verb matches the object.

Cultural Notes

The synthetic passive is very common in formal writing, but in speech, people often use 'a gente' or active voice.

The synthetic passive is used more frequently in both formal and informal speech compared to Brazil.

It is the standard for official documents to maintain neutrality.

The construction derives from Latin 'se' (reflexive pronoun) which evolved to indicate passive voice in Romance languages.

Conversation Starters

O que se vende nesta loja?

Que tipo de profissional se procura hoje em dia?

Como se resolvem conflitos no trabalho?

Quais medidas se adotaram para melhorar a economia?

Journal Prompts

Write a sign for a shop using the passive 'se'.
Describe a news event using the passive 'se'.
Write a formal report on a project.
Discuss the pros and cons of a new law.

Common Mistakes

Incorrect

Correct


Incorrect

Correct


Incorrect

Correct


Incorrect

Correct

Test Yourself

Fill in the correct verb form.

___-se casas aqui. (vender)

✓ Correct! ✗ Not quite. Correct answer: Vendem
Casas is plural.
Choose the correct sentence. Multiple Choice

Which is correct?

✓ Correct! ✗ Not quite. Correct answer: Alugam-se casas
Plural agreement.
Fix the error. Error Correction

Find and fix the mistake:

Vende-se sapatos.

✓ Correct! ✗ Not quite. Correct answer: Vendem-se sapatos
Plural agreement.
Transform to passive. Sentence Transformation

Eles vendem carros. -> ___

✓ Correct! ✗ Not quite. Correct answer: Vendem-se carros
Passive conversion.
Is this correct? True False Rule

Precisa-se de funcionários.

✓ Correct! ✗ Not quite. Correct answer: True
Impersonal construction.
Complete the dialogue. Dialogue Completion

A: O que se faz aqui? B: ___

✓ Correct! ✗ Not quite. Correct answer: Fazem-se sapatos
Plural agreement.
Build the sentence. Sentence Building

os / resultados / publicaram-se

✓ Correct! ✗ Not quite. Correct answer: Publicaram-se os resultados
Plural agreement.
Match the sentence to its type. Match Pairs

Match each item on the left with its pair on the right:

✓ Correct! ✗ Not quite. Correct answer: 1. Passive, 2. Impersonal
Passive vs Impersonal.

Score: /8

Practice Exercises

8 exercises
Fill in the correct verb form.

___-se casas aqui. (vender)

✓ Correct! ✗ Not quite. Correct answer: Vendem
Casas is plural.
Choose the correct sentence. Multiple Choice

Which is correct?

✓ Correct! ✗ Not quite. Correct answer: Alugam-se casas
Plural agreement.
Fix the error. Error Correction

Find and fix the mistake:

Vende-se sapatos.

✓ Correct! ✗ Not quite. Correct answer: Vendem-se sapatos
Plural agreement.
Transform to passive. Sentence Transformation

Eles vendem carros. -> ___

✓ Correct! ✗ Not quite. Correct answer: Vendem-se carros
Passive conversion.
Is this correct? True False Rule

Precisa-se de funcionários.

✓ Correct! ✗ Not quite. Correct answer: True
Impersonal construction.
Complete the dialogue. Dialogue Completion

A: O que se faz aqui? B: ___

✓ Correct! ✗ Not quite. Correct answer: Fazem-se sapatos
Plural agreement.
Build the sentence. Sentence Building

os / resultados / publicaram-se

✓ Correct! ✗ Not quite. Correct answer: Publicaram-se os resultados
Plural agreement.
Match the sentence to its type. Match Pairs

Match: 1. Vende-se casa 2. Precisa-se de ajuda

✓ Correct! ✗ Not quite. Correct answer: 1. Passive, 2. Impersonal
Passive vs Impersonal.

Score: /8

Practice Bank

10 exercises
Fill in the blank. Fill in the Blank

___ (ouvir) passos no corredor ontem à noite.

✓ Correct! ✗ Not quite. Correct answer: Ouviram-se
Which sentence is grammatically correct? Multiple Choice

Choose the correct option:

✓ Correct! ✗ Not quite. Correct answer: Alugam-se apartamentos de luxo.
Fix the agreement error. Error Correction

Descobriu-se novas evidências sobre o caso.

✓ Correct! ✗ Not quite. Correct answer: Descobriram-se novas evidências sobre o caso.
Translate into Portuguese using the synthetic passive. Translation

The rules were changed.

✓ Correct! ✗ Not quite. Correct answer: Mudaram-se as regras.
Match the verb form to the subject. Match Pairs

Match these:

✓ Correct! ✗ Not quite. Correct answer: Procura-se: um emprego, Procuram-se: soluções, Não se aceita: desculpa, Não se aceitam: críticas
Arrange the words. Sentence Reorder

Arrange these words:

✓ Correct! ✗ Not quite. Correct answer: ainda se alugam apartamentos
Select the formal version. Multiple Choice

Choose the synthetic passive:

✓ Correct! ✗ Not quite. Correct answer: Assinou-se o documento.
Fill in the blank. Fill in the Blank

Já ___ (divulgar) os resultados do exame.

✓ Correct! ✗ Not quite. Correct answer: se divulgaram
Identify the correct negative form. Error Correction

Nunca se falou-se disso aqui.

✓ Correct! ✗ Not quite. Correct answer: Nunca se falou disso aqui.
Translate 'Coffee is served'. Translation

How do you say it formally?

✓ Correct! ✗ Not quite. Correct answer: Serve-se café.

Score: /10

FAQ (8)

No, only with transitive verbs (VTD).

Because 'precisar' is an intransitive/prepositional verb, making it an impersonal construction.

It is more common in writing. In speech, people often use active voice.

You usually use the analytical passive instead.

No, reflexive 'se' refers to the subject acting on itself.

Yes, 'Venderam-se casas' is perfectly fine.

Yes, it is considered a formal register.

Failing to pluralize the verb when the object is plural.

Scaffolded Practice

1

1

2

2

3

3

4

4

Mastery Progress

Needs Practice

Improving

Strong

Mastered

In Other Languages

Spanish high

Pasiva refleja

None, it's almost identical.

French moderate

On + verb

French 'on' is always singular.

German low

Man + verb

German lacks a direct passive 'se' equivalent.

Japanese low

Passive form (reru/rareru)

Japanese uses morphology, not a particle.

Arabic low

Passive verb form

Arabic uses internal vowel changes.

Chinese low

Bei (被) structure

Chinese 'bei' marks the agent or the passive directly.

Learning Path

Prerequisites

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