Information questions — the ones that begin with words like who, what, when, where, why — are called wh-questions because in English they (mostly) start with "wh." Brazilian Portuguese has its own set of question words, and a single, friendly rule for arranging the rest of the sentence: front the question word, then keep everything else in normal statement order. No inversion, no auxiliary. Once you have that, the only real work is learning the question words and one extremely common filler, é que.
The question words
| Portuguese | English | Note |
|---|---|---|
| o que / que | what | o que when standing alone; que directly before a noun |
| quem | who / whom | invariable — no plural form |
| quando | when | |
| onde | where | aonde with verbs of motion (to where) |
| como | how | |
| por que | why | two words in a question (see below) |
| qual / quais | which / what (of a set) | agrees in number |
| quanto / quanta / quantos / quantas | how much / how many | agrees in gender and number |
The core rule: front the word, keep SVO
In English, most wh-questions force you to invert or insert "do": Where do you live? When did she arrive? Brazilian Portuguese, true to its love of fixed subject-verb-object order, just puts the question word at the front and leaves the rest exactly as it would be in a statement.
Onde você mora?
Where do you live?
Quando ela chega?
When does she arrive?
Como vocês se conheceram?
How did you two meet?
Read the part after the question word and you will see a complete statement: você mora, ela chega, vocês se conheceram. The English versions need "do/did," but Portuguese needs nothing. This makes wh-questions mechanically easier than in English — there is no auxiliary to conjugate and no inversion to track.
Por que você não me ligou?
Why didn't you call me?
Quem trouxe o bolo?
Who brought the cake?
Notice Quem trouxe o bolo? — when the question word is the subject (as in "who brought…"), there is naturally nothing to invert, just like English "Who brought the cake?".
The é que reinforcement
A hallmark of spoken Brazilian Portuguese is inserting é que right after the question word. It adds no meaning — it is a kind of grammatical filler that smooths the rhythm of the sentence — but it is so common that questions without it can sound slightly abrupt in casual speech.
Onde é que você mora?
Where (is it that) you live? — i.e. Where do you live?
O que é que aconteceu?
What (is it that) happened? — i.e. What happened?
Como é que foi a viagem?
How (was it that) the trip went? — i.e. How was the trip?
The literal English "is it that" is clumsy, but English actually has the same device in cleft questions: "Where is it that you live?" The difference is that in Brazilian Portuguese this is not emphatic or formal — it is the relaxed, everyday default. You can use it with any question word.
Quando é que a gente se vê?
When are we going to see each other?
o que vs que, and por que
Two small spelling-and-form points trip people up.
What: use o que when it stands on its own, and bare que when it sits directly in front of a noun.
O que você quer?
What do you want?
Que horas são?
What time is it?
At the very end of a sentence, or standing completely alone as a one-word question, "what?" is written quê with a circumflex: Você disse o quê? / Quê?
Why: in a direct question it is two words, por que.
Por que vocês saíram tão cedo?
Why did you all leave so early?
When "why" lands at the end of the sentence it becomes por quê (with the accent); the one-word noun "the reason" is o porquê; and the conjunction "because" in an answer is porque (one word, no accent). These four are a classic native-speaker spelling minefield, so do not feel bad about checking them.
qual vs o que — "which/what" of a set
English uses "what" loosely, but Portuguese distinguishes asking for a definition (o que) from asking you to pick from a set (qual). When the answer is a choice among known options — even an open-ended one like a name or a date — Brazilians overwhelmingly use qual.
Qual é o seu nome?
What's your name? (literally: which is your name)
Qual desses você prefere?
Which of these do you prefer?
So Qual é o seu nome? is the standard way to ask someone's name, even though English says "what." Save o que for genuine definitions: O que é saudade? ("What is saudade?").
Common Mistakes
❌ Onde mora você?
Incorrect for spoken BR — inverts subject and verb; sounds European/bookish.
✅ Onde você mora?
Where do you live?
❌ Quando ela fez chegar?
Incorrect — invented a 'did' auxiliary; Portuguese has none.
✅ Quando ela chegou?
When did she arrive?
❌ O que é seu nome?
Incorrect — using 'o que' for a choice from a set; sounds like asking for a definition.
✅ Qual é o seu nome?
What's your name?
❌ Por que você não veio? Porque eu estava cansado, mas por quê não importa.
Mixed-up forms — the spelling of por que / porque / por quê depends on position and function.
✅ Por que você não veio? — Porque eu estava cansado.
Why didn't you come? — Because I was tired.
❌ Quem são os pessoas que vieram?
Incorrect — 'quem' is invariable, but the bigger error is 'os pessoas' (pessoa is feminine).
✅ Quem são as pessoas que vieram?
Who are the people who came?
Key takeaways
- Wh-questions front the question word and then use plain statement order: [word] + subject + verb. No inversion, no "do."
- é que after the question word (Onde é que…, O que é que…) is a meaning-free colloquial smoother — extremely common, always optional.
- qual (not o que) asks you to pick from a set, including names and dates: Qual é o seu nome?
- Watch the spellings: o que / que / quê for "what," and the por que / por quê / porque / o porquê family for "why/because."
Now practice Portuguese
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Start learning Portuguese→Related Topics
- Yes/No Questions in BRA1 — How Brazilian Portuguese forms yes/no questions with intonation alone, the all-purpose tag né?, and the habit of answering by echoing the verb.
- Interrogative Quem: WhoA1 — How to ask 'who' and 'whom' in Brazilian Portuguese with quem, including prepositions and the 'whose' construction de quem.
- Interrogative Que vs O Que: WhatA1 — When to use que and when to use o que to ask 'what' in Brazilian Portuguese, plus the accented o quê at the end of a sentence.
- SVO Word Order in BRA1 — Brazilian Portuguese is a Subject-Verb-Object language, but a flexible one — adjectives follow nouns, the subject is often dropped, and some verbs put their subject last.
- Embedded QuestionsB1 — How to fold a question inside a statement in Brazilian Portuguese — keeping statement word order, dropping the question mark, and using 'se' for yes/no questions.