Don’t or doesn’t? Negatives in the present simple
Short answer: To make a negative with an action verb, use don’t or doesn’t and then the plain verb. Use don’t with I, you, we and they. Use doesn’t with he, she, it and one name. After doesn’t the verb has no -s: She doesn’t like rice. Do not use no before a verb.
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At a glance
| Subject | Negative | Example |
|---|---|---|
| I, you, we, they | don’t + verb | I don’t eat fish. |
| he, she, it | doesn’t + verb | She doesn’t like rice. |
| one name | doesn’t + verb | Ben doesn’t swim. |
In short
- don't: I, you, we, they. doesn't: he, she, it.
- After don't and doesn't, use the plain action word.
- Do not use no before an action word.
What is the rule for “Negatives: don't and doesn't”?
The rule
Use don't with I, you, we and they. Use doesn't with he, she and it. Then use the plain action word.
How it looks
I / you / we / they + don't + action word · he / she / it + doesn't + action word
What it means
don't and doesn't say that something is not done or not liked.
When to use it
Use them in present simple negatives.
How it works
- Choose don’t or doesn’t by the subject.
- Put the plain verb after it. The -s moves to does: she likes becomes she doesn’t like.
- Do not use no before a verb: I don’t like (not I no like).
- Use it for habits, likes and facts that are not true.
Examples of “Negatives: don't and doesn't”
- I don't eat fish.
don't + eat. - She doesn't like rice.
doesn't + like. No -s on like. - We don't go to school.
we + don't. - The dog doesn't swim.
One dog: doesn't. - They don’t watch TV on school days.
they takes don’t. - My brother doesn’t like carrots.
One person: doesn’t. - We don’t have homework today.
have stays plain after don’t. - It doesn’t rain in the desert.
it takes doesn’t.
Common mistakes with “Negatives: don't and doesn't”
I no like cake.→ I don't like cake.
Use don't, not no.He don't like rice.→ He doesn't like rice.
he goes with doesn't.He doesn't likes rice.→ He doesn't like rice.
After doesn't use the plain action word.She don’t like milk.→ She doesn’t like milk.
she takes doesn’t.I doesn’t know.→ I don’t know.
I takes don’t.
Exceptions: watch out
- don't, doesn't
don't = do not. doesn't = does not. Keep the apostrophe.
Don’t and doesn’t compared
The difference is only the subject. After both, the verb is plain.
| Subject | Helper | Verb |
|---|---|---|
| I / you / we / they | don’t | like (plain) |
| he / she / it / one name | doesn’t | like (plain, no -s) |
See also: Negatives: not with be and can
Check yourself
- Fill the gap: “He ___ like fish.”
Show the answer
doesn’t he takes doesn’t.
- Fill the gap: “They ___ play today.”
Show the answer
don’t they takes don’t.
- Fix: “She doesn’t likes tea.”
Show the answer
She doesn’t like tea. After doesn’t, use the plain verb.
How to practice “Negatives: don't and doesn't”
The interactive version adds step-by-step help, spoken instructions and a quick check. One rule card, one sound lesson and the first lesson of every stone are free to try; the rest is part of Full Access. See Full Access.
- Practice lesson: Negatives: don't and doesn't
Questions
Why is there no -s on the verb after “doesn’t”?
The -s is already on does in doesn’t. The main verb stays plain.
Can I say “I don’t be happy”?
No. With be, use am not: I am not happy.
What are the full forms?
do not and does not. Use them in formal writing or to stress the negative.
More Sentence Building rules
- Subject + Verb: A sentence needs someone or something (the subject) and a verb: Birds fly.
- Verbs can have an object: Some verbs can have an object: the person or thing that gets the action.
- Present simple: I, you, we, they: For things we do again and again, and for likes, use the plain action word with I, you, we and they.
- Present simple: he, she, it + -s: With he, she, it or one name, the action word usually adds -s.
- Negatives: not with be and can: To say no with am, is, are or can, add not: I am not, she isn't, they aren't, it can't.
- Yes/No questions and short answers: A yes/no question starts with the helper: am, is, are, do, does or can.
Used in these writing topics
Part of the 📘 Grammar tool. Level G2: Sentence Building. Đọc bằng tiếng Việt.
Written for English learners by the English for Fun team. How we write our lessons · Last updated 2026-11-05.
Reviewed by Chinh Q. Hoang, PhD, founder, English for Fun · 2026-10-30
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