When do I use do or does in a wh- question?

You use do or does when the main verb in the question is an action verb (not 'be'). Use 'do' with I, you, we, and they, and use 'does' with he, she, and it. For example: 'What do you eat?' and 'Where does she work?' If the verb is 'be', you do not need do or does — just use the correct form of be directly: 'Where is she?'

Why can't I say 'Where does she works?'

After do or does in a question, the main verb must always stay in its base form — without any -s or -es ending. The -s is already carried by 'does', so adding it again to the main verb is incorrect. The correct sentence is 'Where does she work?' — not 'Where does she works?'

What is the difference between who and what in a question?

Use 'who' when you are asking about a person: 'Who is your teacher?' Use 'what' when you are asking about a thing, idea, or concept: 'What is your favourite subject?' A common mistake is using 'what' to ask about a person — always use 'who' for people.

Can I use how with other words to make different questions?

Yes — 'how' is very flexible and frequently combines with adjectives and adverbs to form more specific questions. Common combinations include: How much (quantity/price), How many (countable items), How old (age), How far (distance), How long (duration), and How often (frequency). For example: 'How much does it cost?' and 'How often do you exercise?'

Do I need do or does when who is the subject of the question?

No. When 'who' is the subject of the question and the verb is an action verb, you do not use do or does. You place the verb directly after 'who' and add -s for singular: 'Who lives here?' 'Who knows the answer?' This is different from when 'who' is the object: 'Who do you know?' — here, you still need 'do'.

Beginner

Learn Wh- Questions in English

Ask questions with who, what, where, when, why, and how.

Grammar Focus

Wh- questions are one of the most essential tools in English. They allow you to ask for specific information — not just a yes or no answer — which makes your conversations much richer and more natural.

There are six main wh- words: Who (for people), What (for things or information), Where (for places), When (for time), Why (for reasons), and How (for manner or degree).
With the verb be, the wh- word comes first, then the verb, then the subject: "Where is she?"
With action verbs, add do or does after the wh- word: "What does he eat for breakfast?"
The main verb always stays in the base form after do/does — never add -s: "Where does she live?" (not 'lives').
Why questions often get answers that start with because: "Why are you late?" → "Because the bus was slow."
How can combine with adjectives or adverbs to ask for more detail: How old, How much, How far, How often.

Form & Structure

Wh- Words and Their Meanings

Who (person), What (thing), Where (place), When (time), Why (reason), How (manner)

Who is your best friend? — My best friend is Sara.

What is in the bag? — There is a book in the bag.

How do you spell your name? — H-A-R-R-I-S-O-N.

Wh- + Be Questions

Wh-word + be + subject?

Where is the nearest supermarket?

When are the shops open?

Who is that man by the door?

Wh- + Do/Does Questions

Wh-word + do/does + subject + base verb?

What do you eat for breakfast?

Where does she work?

Why do they leave so early?

Common Mistakes

Adding -s to the verb after does in wh- questions

Where does she works?

Where does she work?

Tip: After do or does, always use the base form of the verb. The -s ending moves to does, not the main verb.

Forgetting do/does and using the wrong word order

Where she lives?

Where does she live?

Tip: In wh- questions with action verbs, you must use do or does between the wh- word and the subject.

Mixing up who and what

What is your teacher? (meaning the person)

Who is your teacher?

Tip: Use who when asking about a person, and what when asking about a thing, job, or concept.

Why This Grammar Matters

Meeting someone new

“Where are you from?”

“What do you do for work?”

Asking for directions

“Where is the train station?”

“How far is it from here?”

Making plans with friends

“When does the film start?”

“Who is coming to the party?”

Understanding reasons

“Why are you so tired today?”

“Why does he always arrive late?”

Continue Learning

Yes/No Questions with Be and Do

Same category (Questions) and level

Short Answers and Tag Questions

Same category (Questions) and level

Imperatives (Commands)

beginner companion topic

Can / Can't for Ability and Permission

beginner companion topic

Prepositions of Place

beginner companion topic

Have / Has for Possession

beginner companion topic

This lesson content was created with AI assistance and reviewed for accuracy.

Quick Summary

Use	Formula	Example
Wh- Words and Their Meanings	Who (person), What (thing), Where (place), When (time), Why (reason), How (manner)	Who is your best friend? — My best friend is Sara.
Wh- + Be Questions	Wh-word + be + subject?	Where is the nearest supermarket?
Wh- + Do/Does Questions	Wh-word + do/does + subject + base verb?	What do you eat for breakfast?

If you want to have real conversations in English, wh- questions are absolutely essential. Without them, you can only ask yes-or-no questions — which limits how much information you can gather and how naturally you can connect with other people. Wh- questions open up the conversation. They let you ask exactly what you want to know: who someone is, what they do, where they live, when something happens, why they feel a certain way, and how they do things. The six main wh- question words — who, what, where, when, why, and how — are among the most frequently used words in the English language. Every day, in every kind of situation, people use these words to ask for directions, understand each other better, make plans, and share information. Learning to form and use these questions correctly is one of the most practical investments a beginner English learner can make. For many learners, wh- questions feel tricky at first. The word order in English questions is different from many other languages, and the rules for when to use do or does versus when to use am, is, or are can be confusing. But once you understand the two main patterns — wh- + be, and wh- + do/does — you will be able to form almost any information question you need. This lesson will guide you through everything you need to know about wh- questions: what each question word means and when to use it, how to construct the two main types of wh- question, the most common mistakes learners make, and how these questions appear in real everyday conversations. By the end of this article, you will have a solid foundation for asking and answering wh- questions with confidence.

What Are Wh- Questions in English?

Wh- questions — also called information questions — are questions that ask for a specific piece of information rather than a simple yes or no. They are called wh- questions because most of the question words begin with the letters 'wh': who, what, where, when, and why. The word 'how' is also included in this group even though it does not begin with 'wh', because it serves the same grammatical function. Unlike yes-or-no questions, wh- questions require a full answer. If someone asks 'Do you have a car?', you can simply answer 'Yes' or 'No.' But if someone asks 'What kind of car do you have?', you need to give more information. This is what makes wh- questions so powerful — they drive conversations forward and encourage people to share details. Wh- questions are used in every register of English, from casual everyday speech to formal business communication and academic writing. Whether you are chatting with a friend, applying for a job, attending a class, or asking for help in a shop, you will be using wh- questions constantly. Mastering them early in your language learning journey will have an enormous positive impact on your ability to communicate effectively.

Read the full grammar guide

The Six Main Wh- Question Words

Each of the six wh- question words has a specific purpose, and choosing the right one is the first step to forming a correct and natural-sounding question. **Who** is used to ask about people. 'Who is your doctor?' 'Who did you speak to?' Note that 'who' can also be the subject of the question: 'Who called you?' — here, 'who' is doing the action. **What** is used to ask about things, ideas, actions, and non-person subjects. 'What is your favourite food?' 'What does she study at university?' **Where** asks about places and locations. 'Where do you live?' 'Where is the post office?' **When** asks about time — a specific moment, period, or frequency. 'When does the class start?' 'When is your birthday?' **Why** asks for reasons and explanations. It often pairs with 'because' in the answer. 'Why are you upset?' — 'Because I missed my train.' **How** asks about manner, method, or degree. It is also highly versatile — it combines with other words to form questions like 'How much?', 'How many?', 'How old?', 'How far?', and 'How often?', making it one of the most flexible question words in English.

How to Form Wh- Questions in English

There are two main patterns for forming wh- questions in English, and which one you use depends on whether the main verb in the question is the verb 'be' or an action verb. **Pattern 1: Wh- + be + subject** When the verb is a form of 'be' (am, is, are, was, were), the structure is straightforward: wh- word, then the correct form of be, then the subject. For example: 'Where is the hospital?' 'When are the exams?' 'Who is that woman?' Notice that in this pattern, there is no need for do or does. **Pattern 2: Wh- + do/does + subject + base verb** When the verb is an action verb (like work, live, eat, study, or go), you need to use do or does as an auxiliary verb. The structure is: wh- word + do or does + subject + base verb. Use 'do' for I, you, we, and they. Use 'does' for he, she, and it. For example: 'What do you eat for breakfast?' 'Where does she work?' 'Why do they leave so early?' A critical rule: after do or does, the main verb must stay in the base form. Never add -s or -es to the main verb. 'Where does she works?' is incorrect — the correct form is 'Where does she work?' The -s ending moves to 'does'; it cannot appear on both the auxiliary and the main verb. A special case: when 'who' is the subject of the question and the verb is an action verb, you do not need do or does. 'Who lives next door?' — here, 'who' is the subject, and you simply add the main verb (with -s for singular) directly after it.

Common Mistakes with Wh- Questions

Even learners who have studied wh- questions often make the same handful of errors. Being aware of these mistakes will help you avoid them from the start. The most common mistake is forgetting to use do or does when forming questions with action verbs. Learners often say 'Where she lives?' instead of 'Where does she live?' In English, you cannot simply add a question mark to a statement to form a question — you need to invert the word order and add the auxiliary verb do or does. A related mistake is adding -s to the main verb after does: 'Where does she works?' is incorrect. Once you use 'does', the main verb must stay in its base form: 'Where does she work?' The -s already exists in 'does' and should not be doubled on the main verb. Another frequent error involves confusing 'who' and 'what'. Some learners use 'what' to ask about a person: 'What is your teacher?' The correct question is 'Who is your teacher?' — 'who' is for people, 'what' is for things and concepts. Finally, some learners confuse the word order when 'who' is the subject of the question. 'Who does live here?' is wrong. When 'who' is the subject, you just say 'Who lives here?' — no do or does is needed. Remembering this exception will make your questions sound much more natural.

Wh- Questions in Real Conversations

Wh- questions are the engine of real conversation. They move dialogue forward, show interest in the other person, and allow you to gather the specific information you need in any situation. When you meet someone new, wh- questions are some of the first things you say: 'Where are you from?' 'What do you do?' 'How long have you been here?' These questions are natural, polite, and open up a conversation quickly. When you need help in an unfamiliar place, wh- questions give you direction: 'Where is the nearest pharmacy?' 'How do I get to the city centre?' 'When does the last bus leave?' In social and professional settings, wh- questions show engagement and curiosity: 'What did you think of the meeting?' 'Why did the project get delayed?' 'Who is responsible for this section?' Practising wh- questions in context — rather than just in grammar exercises — is the fastest way to make them feel natural. Try forming two or three wh- questions each day about real things in your life. The more you use them, the more automatic they will become.

Practice In This Page

1. _____ is your best friend? — My best friend is Sara.
Show answer
Who
2. _____ is the nearest supermarket?
Show answer
Where
3. Where does she works?
Show answer
Where does she work?
4. Where she lives?
Show answer
Where does she live?
5. What is your teacher? (meaning the person)
Show answer
Who is your teacher?

Frequently Asked Questions

What are wh- questions in English?: Wh- questions are information questions that begin with a question word such as who, what, where, when, why, or how. They ask for a specific piece of information rather than a simple yes or no answer. For example, 'Where do you live?' asks for a location, while 'Why are you late?' asks for a reason.
When do I use do or does in a wh- question?: You use do or does when the main verb in the question is an action verb (not 'be'). Use 'do' with I, you, we, and they, and use 'does' with he, she, and it. For example: 'What do you eat?' and 'Where does she work?' If the verb is 'be', you do not need do or does — just use the correct form of be directly: 'Where is she?'
Why can't I say 'Where does she works?': After do or does in a question, the main verb must always stay in its base form — without any -s or -es ending. The -s is already carried by 'does', so adding it again to the main verb is incorrect. The correct sentence is 'Where does she work?' — not 'Where does she works?'
What is the difference between who and what in a question?: Use 'who' when you are asking about a person: 'Who is your teacher?' Use 'what' when you are asking about a thing, idea, or concept: 'What is your favourite subject?' A common mistake is using 'what' to ask about a person — always use 'who' for people.
Can I use how with other words to make different questions?: Yes — 'how' is very flexible and frequently combines with adjectives and adverbs to form more specific questions. Common combinations include: How much (quantity/price), How many (countable items), How old (age), How far (distance), How long (duration), and How often (frequency). For example: 'How much does it cost?' and 'How often do you exercise?'
Do I need do or does when who is the subject of the question?: No. When 'who' is the subject of the question and the verb is an action verb, you do not use do or does. You place the verb directly after 'who' and add -s for singular: 'Who lives here?' 'Who knows the answer?' This is different from when 'who' is the object: 'Who do you know?' — here, you still need 'do'.