Asking Information Questions — I can ask common information questions (what, where, when, who, how, how much, why) in simple conversation.

Portuguese is a Romance language, meaning it descended from Latin, the language spoken across the Roman Empire. When Roman soldiers and settlers arrived on the Iberian Peninsula around 218 BCE, they brought Vulgar Latin — the everyday spoken variety — with them. Over centuries, this Latin mixed with local languages and evolved into what we now call Portuguese. The question words you are about to learn, such as quem (who) from the Latin quem, and quando (when) from quando, are remarkably close to their Latin ancestors, showing just how deep these roots go.

Why focus on question words first? Think about it: almost every meaningful conversation begins with a question. Whether you are asking for directions in Lisbon, ordering food in São Paulo, or just getting to know someone new, information questions are your gateway into real dialogue. Without them, you can only respond — you cannot steer the conversation. This lesson equips you with the seven most common Portuguese question words and shows you exactly how to build sentences around them.

In Portuguese, information questions (also called perguntas informativas) are questions that cannot be answered with a simple "yes" or "no." They require an interrogative word (also called a palavra interrogativa) at or near the beginning of the sentence. These words signal to the listener exactly what kind of information you are looking for. Unlike English, Portuguese question words almost always carry a written accent mark, which is a helpful visual cue.

The diagram above is your mental map for Portuguese questions. Each of the seven words targets a specific type of information. O quê / Qual asks about things or choices. Onde asks about places. Quando asks about time. Quem asks about people. Como asks about manner or condition. Quanto/Quanta asks about quantity or price. And Por quê asks about reasons. Memorize these seven, and you can ask about virtually anything.

Building a Portuguese information question is simpler than you might expect, especially compared to English. In English, you typically need a helper verb ("do" or "does") to form a question: "Where do you live?" Portuguese skips that step entirely. The basic formula for most information questions follows a clear pattern.

In Brazilian Portuguese, the subject often comes before the verb, giving you an even simpler pattern: Question Word + Subject + Verb + (Complement). For example, Onde você mora? (Where do you live?) follows this Brazilian pattern, while Onde mora você? follows the European Portuguese pattern with the verb before the subject. Both are grammatically correct.

Now let's examine each of the seven question words individually. For each one, you will see its pronunciation guide, its typical use, and example sentences. Pay close attention to the contexts in which each word appears, because some words — like o que versus qual — may seem similar but have distinct uses.

O que vs. Qual — A Key Distinction

One common source of confusion is the difference between o que and qual. Both can translate as "what" in English, but they serve different purposes. Use o que when asking for a definition or general information: O que é isso? (What is this?). Use qual when choosing from options or asking for specific data: Qual é o seu telefone? (What is your phone number?). Think of it this way: o que is an open-ended "what," while qual is a "which one" — it implies selection.

Quanto — Gender Agreement

The word quanto changes form to match the gender and number of the noun it refers to. For masculine singular nouns, use quanto; for feminine singular, use quanta; for masculine plural, quantos; and for feminine plural, quantas. For example: Quantos alunos tem na sala? (How many students are in the room?) vs. Quantas páginas tem o livro? (How many pages does the book have?).

Let's walk through a realistic scenario. Imagine you are a student visiting Brazil for a summer exchange program. You have just arrived at the host family's home, and you want to ask several questions to get oriented. We will build each question step by step using the formula from Section 4.

Learning a new language means making mistakes — that is completely normal and expected. However, some errors come up far more often than others among English speakers learning Portuguese. The table below highlights the most frequent pitfalls and how to steer clear of them.

The seven question words you have learned form the foundation for more advanced conversational patterns. As your Portuguese improves, you will combine these words with prepositions, use them in indirect questions, and even deploy them in more formal registers. Here is a preview of how these basics evolve.

Notice the pattern: advanced questions build on the same seven question words by adding prepositions (de, para, com, em) before the question word, or by embedding the question inside a longer sentence. The emphasis marker é que is also extremely common in spoken Brazilian Portuguese — it functions like saying "is it that" to add emphasis. These are natural next steps once you have mastered the basics in this lesson.