Auxiliary Verbs: Do, Be & Have in Questions and Negatives
Grammar Rule in 30 Seconds
Use 'do', 'be', or 'have' as helpers to build questions and negatives in English.
- Use 'do/does' for action verbs in questions and negatives: 'Do you like pizza?'
- Use 'be' (am/is/are) for descriptions and states: 'Are you tired?'
- Use 'have/has' for perfect tenses or possession: 'Have you seen my keys?'
Auxiliary (helping) verbs work alongside the main verb to form questions, negatives, and tenses.
Do / Does / Did — Simple Tenses
| Use | Example |
|---|---|
| Question | Do you like coffee? / Did she call? |
| Negative | She doesn't know. / We didn't go. |
| Short answer | "Do you like it?" — "Yes, I do." |
Be (am/is/are/was/were) — Continuous & Passive
| Use | Example |
|---|---|
| Present continuous | She is studying. |
| Passive | The window was broken. |
| Question | Are you ready? |
Have / Has / Had — Perfect Tenses
| Use | Example |
|---|---|
| Present perfect | I have finished my homework. |
| Negative | He hasn't replied yet. |
| Question | Have you ever been to London? |
Short Answers — Use the Auxiliary!
✅ "Do you live here?" — "Yes, I do." (not: "Yes, I live.")
✅ "Is she working?" — "No, she isn't."
✅ "Have they finished?" — "Yes, they have."
Auxiliary Verb Forms
| Subject | Do (Present) | Be (Present) | Have (Present) |
|---|---|---|---|
|
I
|
do
|
am
|
have
|
|
You
|
do
|
are
|
have
|
|
He/She/It
|
does
|
is
|
has
|
|
We
|
do
|
are
|
have
|
|
They
|
do
|
are
|
have
|
Contractions
| Full Form | Contraction |
|---|---|
|
do not
|
don't
|
|
does not
|
doesn't
|
|
is not
|
isn't
|
|
are not
|
aren't
|
|
have not
|
haven't
|
|
has not
|
hasn't
|
Meanings
Auxiliary verbs are 'helper' words that indicate the tense, mood, or voice of the main verb. They are essential for creating questions and negative statements in English.
Do-Support
Used to form questions and negatives with non-be verbs.
“Do you work here?”
“I do not know.”
Be-Copula
Used for states, identities, and continuous actions.
“Are you happy?”
“I am not hungry.”
Have-Perfect
Used to form the present perfect tense.
“Have you eaten?”
“I have not finished.”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
Affirmative
|
Subject + Verb
|
I like tea.
|
|
Negative
|
Subject + Aux + not + Verb
|
I do not like tea.
|
|
Question
|
Aux + Subject + Verb
|
Do you like tea?
|
|
Short Answer (Yes)
|
Yes, + Subject + Aux
|
Yes, I do.
|
|
Short Answer (No)
|
No, + Subject + Aux + not
|
No, I do not.
|
|
Be (Question)
|
Be + Subject
|
Are you happy?
|
|
Have (Question)
|
Have + Subject + Participle
|
Have you eaten?
|
Formality Spectrum
Are you currently employed? (Professional/Social)
Do you have a job? (Professional/Social)
You working? (Professional/Social)
Got a gig? (Professional/Social)
The Auxiliary Family
Do
- do/does Action helper
Be
- am/is/are State helper
Have
- have/has Perfect helper
Examples by Level
Do you like tea?
I do not know.
Are you hungry?
Is he here?
Does she speak English?
They are not coming.
Have you seen this?
I have not finished.
Do you happen to know the time?
I have been waiting for an hour.
Are you being serious?
Does it really matter?
Had I known, I would have come.
Do not hesitate to contact us.
Are you having a good time?
Has the report been submitted?
Never have I seen such a sight.
Do you not agree with the proposal?
Are we to assume this is final?
Have you been working on this all day?
Little did I know what was coming.
Should you require assistance, do ask.
Have you ever been to such a place?
Are you not the person I met yesterday?
Easily Confused
Learners mix up the third-person singular.
Using 'do' for states.
Mixing them up in questions.
Common Mistakes
You like coffee?
Do you like coffee?
I no like.
I do not like.
Do she like?
Does she like?
Are you go?
Are you going?
Do you be happy?
Are you happy?
Have you eat?
Have you eaten?
Does he goes?
Does he go?
Did you has?
Did you have?
I haven't see.
I haven't seen.
Do you have been?
Have you been?
Little I have known.
Little have I known.
Do not you know?
Do you not know?
Are you not to go?
Are you not going?
Have you be?
Have you been?
Sentence Patterns
Do you ___?
Are you ___?
Have you ___?
Does he ___?
Real World Usage
Are you coming?
Do you have experience?
Do you have a menu?
Have you been to London?
Do you like this?
Have you received my email?
The 'S' Rule
No Double S
Contractions
Politeness
Smart Tips
Always check if you need 'do' or 'does'.
Never use 'do' with 'be'.
Remember the 's' moves to the auxiliary.
Place 'not' right after the helper.
Pronunciation
Contractions
Contractions are usually unstressed in speech.
Yes/No Question
Do you like it? ↗
Rising intonation at the end.
Memorize It
Mnemonic
Remember 'DAH': Do for actions, Are for states, Have for perfects.
Visual Association
Imagine a construction site. 'Do' is the crane lifting the verb, 'Be' is the foundation, and 'Have' is the roof.
Rhyme
For questions and negatives, don't be shy, use a helper verb to help you fly!
Story
Once there was a verb named 'Action'. He couldn't ask questions alone. He hired 'Do' to stand at the front. Now he asks questions all day long.
Word Web
Challenge
Write 5 questions you want to ask a friend using 'Do', 'Are', and 'Have'.
Cultural Notes
Often uses 'have got' instead of just 'have'.
Prefers 'do you have' for possession.
Frequently uses 'reckon' with auxiliary structures.
These auxiliaries evolved from Old English main verbs.
Conversation Starters
Do you like coffee?
Are you having a good day?
Have you ever traveled abroad?
Do you think it will rain?
Journal Prompts
Common Mistakes
Test Yourself
___ you like pizza?
___ she live here?
Find and fix the mistake:
You are like tea?
Arrange the words in the correct order:
All words placed
Click words above to build the sentence
No tengo dinero.
Answer starts with: I d...
Match each item on the left with its pair on the right:
He ___ not like it.
you / be / happy / ?
Score: /8
Practice Exercises
8 exercises___ you like pizza?
___ she live here?
Find and fix the mistake:
You are like tea?
you / have / eaten / ?
No tengo dinero.
Do you work here?
He ___ not like it.
you / be / happy / ?
Score: /8
FAQ (8)
It helps make questions with action verbs.
No, that is incorrect. Use 'Do you like it?'
For he, she, and it.
No, it can be a main verb for possession.
Add 'not' after the auxiliary.
Use 'be'.
Yes, they are essential.
Yes, it becomes 'did'.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Verb conjugation
English requires an auxiliary; Spanish does not.
Est-ce que
English uses a single auxiliary word.
Verb-second position
English needs a helper; German moves the main verb.
Ka particle
English changes the start; Japanese changes the end.
Hal/A
English uses specific auxiliary verbs.
Ma particle
English uses auxiliary verbs.
Learning Path
Prerequisites
Related Videos
Related Grammar Rules
Too, Too Much, Too Many & Enough
## Too **Too** means "more than needed/wanted" — it expresses a problem. - **too + adjective:** This soup is **too** h...
Permission: Can, May, Be Allowed To, Be Supposed To
## Can — Everyday Permission The most common way to give, ask for, or deny permission: - **Can** I use your phone? (as...
Indefinite Pronouns: Something, Anything, Nothing, Everyone
## The Four Groups | | People | Things | Places | |---|---|---|---| | **some-** | someone | something | somewhere | | *...
Most, Most of & The Most: Expressing the Largest Amount
## Most + Noun (General) Use **most** (without "the") for general statements about the majority: - **Most** people wan...
Prepositions of Movement: Along, Across, Through, Over, Past
## Key Prepositions of Movement **along** — moving beside something long (a road, river, path): - We walked **along** t...
