What are Wh- Questions?
Wh- questions are questions that ask for specific information. They start with question words: who, what, where, when, why, and how. Unlike yes/no questions, wh- questions need more detailed answers. For example, "Do you like coffee?" is a yes/no question, but "What do you like to drink?" is a wh- question that needs a specific answer.
How to Form Wh- Questions
The basic pattern is: Wh- word + auxiliary verb + subject + main verb + rest of sentence. For present simple: "Where do you live?" For past simple: "What did you eat?" For present continuous: "What are you doing?" The auxiliary verb (do, does, did, is, are) comes before the subject. This is the opposite of statements, where the subject comes first.
Understanding Each Wh- Word
| Wh- Word | Purpose | Example Question |
|---|---|---|
| Who | Asks about people | "Who is your best friend?" |
| What | Asks about things or actions | "What is your job?" |
| Where | Asks about place | "Where do you work?" |
| When | Asks about time | "When is your birthday?" |
| Why | Asks about reasons | "Why do you like this sport?" |
| How | Asks about manner or way | "How do you make coffee?" |
Learning when to use each word helps you ask the right questions and understand English better.
Wh- Questions vs Yes/No Questions
| Feature | Wh- Questions | Yes/No Questions |
|---|---|---|
| Form | Wh- word + auxiliary verb + subject + main verb (e.g., What do you eat?) |
Auxiliary verb + subject + main verb (e.g., Do you eat meat?) |
| When to Use | When you need specific information about a person, place, time, reason, manner, or thing | When you want to confirm or deny something and only need a simple yes or no response |
| Expected Answer Type | An open, informative answer with specific details (e.g., "She lives in London.") |
A closed answer: simply Yes or No (often followed by a short phrase) (e.g., "Yes, she does.") |
| Auxiliary Verb Usage | Auxiliary verb comes after the Wh- word and before the subject (What does he want?) |
Auxiliary verb is placed at the very beginning of the sentence, before the subject (Does he want coffee?) |
| Positive Example | "Where do you work?" "Who is calling?" "Why are they laughing?" |
"Do you work here?" "Is someone calling?" "Are they laughing?" |
| Negative Example | "Why didn't you call me?" "When won't she be available?" |
"Didn't you call me?" "Won't she be available?" |
| Question Example | "How did you solve the problem?" "What time does the train leave?" |
"Did you solve the problem?" "Has the train left yet?" |
| Key Signal Words | Who (person), What (thing/idea), Where (place), When (time), Why (reason), How (manner/degree), Which (choice), Whose (possession) | Do/Does/Did, Is/Are/Was/Were, Have/Has/Had, Can/Could, Will/Would, Should/Shall/May/Might |
| Word Order | Wh- word → Auxiliary → Subject → Verb What + does + she + do? |
Auxiliary → Subject → Verb Does + she + work here? |
| Subject as Wh- Word | When who or what is the subject, no auxiliary is needed: "Who called you?" / "What happened?" |
Does not apply — there is no Wh- word acting as the subject in Yes/No questions |
| Complexity / Information Level | Higher — requires the speaker to provide detailed, context-specific information | Lower — requires only confirmation or denial; minimal information exchanged |
| 🔑 Key Difference: The fundamental distinction is the type of information requested. Wh- questions begin with a question word (who, what, where, when, why, how) and demand an open, descriptive answer because the speaker does not know a specific detail. Yes/No questions begin with an auxiliary verb and require only a confirmation or denial, because the speaker is verifying whether something is true or false. In terms of structure, Wh- questions place the question word first followed by the inverted auxiliary-subject order, whereas Yes/No questions simply invert the auxiliary verb and subject with no question word present. | ||
Formula
? Question
Where
+
do
+
you
+
live
+
?
Where do you live?
? Question
What
+
did
+
you
+
eat
+
for breakfast
+
?
What did you eat for breakfast?
? Question
Why
+
are
+
you
+
sad
+
?
Why are you sad?
? Question
Who
+
is
+
that
+
?
Who is that?
Examples
What is your name?
Asking for information about a person · Common greeting
Where do you study?
Asking about a place · School or work situation
When does the meeting start?
Asking about time · Work or formal setting
Why do you like this book?
Asking for a reason · Everyday conversation
How do you go to school?
Asking about manner or method · Daily life
Who is your English teacher?
Asking about a person · School context
When to use it
Everyday Conversations
Use wh- questions to ask friends and family for information. These questions are essential for normal conversation.
"What did you do yesterday?" or "Where are you going?"
School & Learning
Ask teachers and classmates questions to understand lessons and get help. Wh- questions show engagement in class.
"How do you solve this problem?" or "When is the test?"
Work Situations
Ask colleagues and managers professional questions. This helps you do your job well and understand expectations.
"When is the deadline?" or "Who should I contact?"
Asking for Directions
Use wh- questions when you need help finding places. These are very practical in daily life.
"Where is the nearest station?" or "How do I get there?"
Signal words
who
what
where
when
why
how
do
does
did
is
are
was
were
Common Mistakes
✕
Wrong
Where you live?
✓
Correct
Where do you live?
Wh- questions need an auxiliary verb (do, does, did) before the subject.
✕
Wrong
What you are doing?
✓
Correct
What are you doing?
The auxiliary verb (are) must come before the subject (you), not after.
✕
Wrong
Why did you went?
✓
Correct
Why did you go?
After 'did', use the base form of the verb, not the past tense form.
✕
Wrong
When is your birthday you?
✓
Correct
When is your birthday?
The subject pronoun 'you' is unnecessary and incorrect after the noun 'birthday' in a question; remove it to form a proper wh- question.
KEY TAKEAWAYS
What to Remember
- Wh- questions ask for specific information and need detailed answers, unlike yes/no questions.
- Wh- question word order is: question word + auxiliary verb + subject + main verb.
- Common wh- question words are who, what, where, when, why, and how.
- Use "do/does" for present simple wh- questions and "did" for past simple wh- questions.
- Never use statement word order in wh- questions; always invert the subject and auxiliary verb.