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Am I Making Negative Sentences Correctly? Help With "Do/Does Not" vs "Is Not"

Asked byPunctuation PaulPosted Apr 1, 2026 11:01 AM3 answers27 upvotesCanonical URL

I'm practicing making negative sentences in English and I keep getting confused about when to use 'does not', 'do not', or 'is not'. For example, should I say 'She does not like coffee' or 'She is not like coffee'? Also, when talking about myself, is it 'I do not play tennis' or 'I am not play tennis'?

I want to make sure I'm using the correct structure in both speaking and writing. Could someone please explain how to choose the right form? I don't want my sentences to sound strange. Thanks!

Context:
I'm preparing for a B1 language test.

#do-support

What to Know

What to KnowWhy It MattersExampleQuick Check
To make correct negative sentences in English, you need to choose the right negative helping verb based on whether your main verb is a regular (action) verb or the verb 'be.'.✅ "She does not like coffee." (correct).I used "Do/Does Not" because it matched the meaning in my sentence.Does this wording match my intended meaning in this sentence?
Writers often treat Do/Does Not and Is Not as interchangeable even when context and meaning differ.This helps you choose wording by meaning instead of surface form.I used "Is Not" because the context required that meaning.Did I choose this form for meaning, not because it looked familiar?

3 Answers

ByMaya ModeratorApr 1, 2026 11:21 AM9 upvotesAccepted answer

To make correct negative sentences in English, you need to choose the right negative helping verb based on whether your main verb is a regular (action) verb or the verb 'be.'

Pattern 1: Action verbs (like, play, eat)

  • Present simple negative: Subject + do/does + not + base verb
    • Example: "They do not eat meat."
    • Example: "He does not watch TV."

Pattern 2: 'Be' verbs (am, is, are)

  • Present simple negative: Subject + am/is/are + not (+ adjective/noun/verb-ing)
    • Example: "She is not happy."
    • Example: "I am not tired."

Common Correction:

  • ❌ "She is not like coffee." (incorrect for talking about likes/dislikes)
  • ✅ "She does not like coffee." (correct)
  • ❌ "I am not play tennis."
  • ✅ "I do not play tennis."

Practice tip: Take a few verbs you commonly use and fit them into each pattern. Self-test: Is your main verb 'be'? If yes, use pattern 2. If not, use pattern 1.

ByClaire CopydeskApr 1, 2026 11:41 AM9 upvotes
If the verb is 'be' (am/is/are) If the verb is any other action (do, play, like, etc.) I am not tired. I do not eat fish. She is not a teacher. She does not speak Spanish.

Key rule:

  • Use "do/does not" when there is an action verb.
  • Use "am/is/are not" if the verb is 'be.'

Check yourself: Ask: Does my main word after the subject show what someone is? Use 'is/am/are not.' Does it show what someone does? Use 'do/does not.'

Try making 2 sentences about yourself and 2 about another person. Double-check: are you following the table's rules?

ByAmelia EditorApr 1, 2026 12:01 PM9 upvotes

Let's break this down by the main verb:

1. With 'do/does not': Use for ordinary actions or general things people do. Example:

  • "We do not drive to work."
  • "He does not dance."

2. With 'is/am/are not': Use when you are talking about a state, identity, or adjective. Example:

  • "I am not angry."
  • "She is not at home."

Guided correction: Take your examples:

  • 'She does not like coffee' (correct)
  • 'She is not like coffee' (strange – unless you mean she is similar to coffee as a thing!)
  • 'I do not play tennis' (correct)
  • 'I am not play tennis' (incorrect)

Self-editing practice: After making any negative sentence, ask: Is my verb 'be' or something else? If it's not 'be,' use "do/does not" before the verb (base form). Write and correct 3 new sentences about your habits.

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