Introduction
Many learners of Brazilian Portuguese struggle with subject-verb agreement when writing messages, emails, or short paragraphs. This article explains the key agreement rules in clear English and gives practical Brazilian Portuguese examples you can use in everyday situations. Focus on common mistakes, useful patterns, and simple sentences a beginner can practice right away.
- Why subject-verb agreement matters in Portuguese
- Common mistakes and how to fix them
- Agreement with pronouns and impersonal constructions
- Agreement in negative and question sentences
- Practical writing patterns for beginners
- Small rules that help avoid errors
- Common vocabulary and small grammar notes
- Quick checklist before sending a message
- Conclusion
Why subject-verb agreement matters in Portuguese
Subject-verb agreement means the verb form changes to match the subject in person (first, second, third) and number (singular, plural). In Portuguese, agreement is visible in verb endings and sometimes in compound tenses. Correct agreement makes your writing sound natural and avoids misunderstandings in messages, emails, and forms.
Basic verb conjugation pattern
Portuguese verbs are conjugated for person and number. Learn the present tense endings for regular verbs in each conjugation group (-ar, -er, -ir). These endings are the most common in simple sentences, chats, and signs.
Examples in Brazilian Portuguese:
falar (to speak): eu falo
você fala / tu falas
nós falamos
vocês falam / eles falam
comer (to eat): eu como
você come / tu comes
nós comemos
vocês comem / eles comem
abrir (to open): eu abro
você abre / tu abres
nós abrimos
vocês abrem / eles abrem
Common mistakes and how to fix them
Below are frequent errors learners make when writing in Brazilian Portuguese, with explanations and corrected examples you can copy into messages or exercises.
Mistake 1: Using infinitive instead of conjugated verb
Error often happens when translating literal English word order or when learners forget to conjugate after a subject.
Incorrect: Eu gostar de café.
Correct: Eu gosto de café.
Tip: After a subject like eu, você, nós, always use the conjugated form, not the infinitive.
Mistake 2: Wrong person for você and tu
Brazilian Portuguese commonly uses você with third-person verb forms, while tu takes second-person forms in some regions. Mixing them causes agreement errors.
Incorrect: Tu fala bem português.
Correct (Brazilian): Você fala bem português.
Alternative correct (if using tu regionally): Tu falas bem o português.
Tip: For beginners in Brazilian Portuguese, prefer você + third-person conjugation to avoid confusion.
Mistake 3: Subject-verb disagreement with compound subjects
When two or more subjects are connected by e (and), the verb must be plural. Some learners mistakenly keep the verb singular thinking of one main subject.
Incorrect: O João e a Maria vai à festa.
Correct: O João e a Maria vão à festa.
Tip: If subjects are joined by e, use a plural verb: nós vamos, eles estudam, as cadeiras estão limpas.
Mistake 4: Contractions and clitic pronouns affect agreement
Portuguese uses contractions such as da, do, no, na, and clitic pronouns can attach to verbs. These do not change agreement but can confuse learners about subject position.
Example: Ela vai ao mercado amanhã. (ao = a + o)
Incorrect: Vai ao mercado amanhã? when addressing você informally in writing without subject can be ambiguous.
Correct: Você vai ao mercado amanhã? or Vai ao mercado amanhã? (both are acceptable; the first is clearer in formal messages)
Tip: When writing short replies or chat messages, including the subject (você, eu, nós) helps clarity for learners.
Agreement with pronouns and impersonal constructions
Portuguese has impersonal verbs and constructions that do not behave like simple subject-verb pairs. These include usar se for impessoal and expressions with há, faz (time), and há + time.
Impersonal se and passive
Impersonal se expresses general statements without a clear subject. The verb is third-person singular when the implied subject is singular or plural depending on the noun that follows.
Example: Vende-se apartamento. (Apartment is sold here; literal: Sells-itself apartment)
Correct plural example: Vendem-se apartamentos. (Apartments are sold)
Tip: Match the verb number to the noun after se, not to a personal subject. For a beginner writing signs or classified ads, use the simple pattern: Vende-se casa. Vendem-se carros.
Existential há and fazer for time
For saying time passed, use faz + time or há + time. These are impersonal and stay in singular form.
Examples: Faz dois anos que moro aqui. / Há dois anos moro aqui.
Incorrect: Fazem dois anos que moro aqui.
Tip: Use faz or há in singular when expressing elapsed time: Faz três meses, Há uma semana.
Agreement in negative and question sentences
Questions and negative sentences follow the same agreement rules. Learners sometimes change the verb form when adding não or a question mark.
Negative sentences
Place não before the verb to make a sentence negative. Keep the verb conjugated normally to match the subject.
Incorrect: Eu não comer pizza ontem.
Correct: Eu não comi pizza ontem.
Tip: For present or past negative sentences, conjugate the verb and put não before it: Eu não entendo, Nós não fomos, Ela não quer.
Yes/no questions
In simple yes/no questions, keep the verb form for the subject. You can invert subject and verb or keep subject before the verb in casual writing.
Formal: Você vai amanhã? or Vai você amanhã?
Casual: Vai amanhã? / Você vai amanhã?
Tip: When in doubt, keep the subject before the verb to avoid agreement mistakes: Você pode me ajudar?
Practical writing patterns for beginners
Here are useful sentence templates and small messages in Brazilian Portuguese for everyday situations. Use them to practice correct subject-verb agreement.
Introducing yourself: Olá, eu sou Ana. Moro em São Paulo e trabalho como professora.
Asking for help: Você pode me ajudar com este formulário?
Making a plan: Nós vamos ao restaurante às 19h.
Apologizing: Desculpe, eu não entendi a pergunta.
Giving information: O ônibus passa às 8h e chega às 8h30.
Requesting a favor: Você poderia me enviar a confirmação por e-mail?
Shopping: Eu quero duas maçãs e um pão, por favor.
Restaurant order: Eu vou querer o prato do dia e uma água sem gás.
Short chat reply: Sim, eu posso. / Não, eu não posso hoje.
Common beginner mistakes shown with corrections
Incorrect: Eles vai chegar tarde.
Correct: Eles vão chegar tarde.
Incorrect: Eu não sabe a resposta.
Correct: Eu não sei a resposta.
Incorrect: Você querem café?
Correct: Você quer café?
Incorrect: Nós estuda amanhã.
Correct: Nós estudamos amanhã.
Small rules that help avoid errors
Memorize a few easy habits that prevent most subject-verb mistakes when writing Portuguese sentences.
1. Always identify the subject first (eu, você, ele/ela, nós, vocês, eles/elas).
2. Choose the verb tense you need (present, past, future) and apply the correct ending for that subject.
3. With compound subjects joined by e, make the verb plural: João e eu vamos, Ana e Maria estudam.
4. Use você + third-person conjugation for beginner-friendly Brazilian Portuguese: você fala, você come, você abre.
5. In impersonal constructions with se, match the verb to the noun that follows: Vende-se apartamento / Vendem-se apartamentos.
Practice exercises you can write now
Exercise 1: Fill the correct verb form for these subjects (use present tense): Eu (trabalhar) __________, Você (comer) __________, Nós (ir) __________, Eles (dormir) __________.
Exercise 2: Rewrite these sentences correctly: Tu gostar de música? / Ela não falam inglês. / O livro e o caderno está na mesa.
Exercise 3: Write a short message to a friend inviting them to lunch. Use a subject and the correct verb form: example message: Oi, você quer almoçar comigo hoje às 13h?
Common vocabulary and small grammar notes
Some words and punctuation tips appear often in writing and affect clarity.
Pronouns: eu, você, ele, ela, nós, vocês, eles, elas.
Common verbs: ser, estar, ter, ir, fazer, poder, querer, precisar.
Accents: Pay attention to accents on verbs and past participles only when needed: está (is), foi (went/was), pôde (could, past). Accents can change meaning and pronunciation.
Punctuation: Use a question mark for questions (Você vem?), a period for statements (Eu venho.), and commas to separate clauses: Se você quiser, posso ajudar.
Quick checklist before sending a message
Run through this short checklist when writing emails, chat messages, or forms to avoid agreement errors.
1. Did I include the subject or is it clear? (Eu, você, nós…)
2. Is the verb conjugated correctly for that subject?
3. Are compound subjects matched with a plural verb?
4. Did I use não before the verb for negatives?
5. For impersonal se or time expressions, did I choose the correct singular/plural form?
Conclusion
Subject-verb agreement in Brazilian Portuguese becomes easier with a few clear rules and regular use of common patterns. Focus on identifying the subject, using você for beginner-friendly conversation, making verbs plural with compound subjects, and matching verbs after impersonal se. Practice short messages and the sample exercises to build confidence in everyday writing situations.
