DON’T & DOESN’T — Negative Sentences in the Simple Present

🔁 DON’T & DOESN’T — Negative Sentences in the Simple Present

The lesson explains how to use DON’T and DOESN’T in negative sentences in the simple present

🎯 Level: Beginner  ⏱ Time: 5 minutes📘 Category: Grammar

 
 

🎯 Objective

By the end of this lesson, you can:

  • Make negative sentences in the simple present
  • Understand the difference between don’t and doesn’t
  • Avoid common beginner mistakes

🧠 The Basic Rule

We use:

  • Don’t (do not) → I / You / We / They
  • Doesn’t (does not) → He / She / It

👉  The main verb is always in the base form (no -s).

🧩 Sentence Structure

✅ A) Yes / No Questions

Subject + don’t/doesn’t + base verb

Subject Don’t / Doesn’t Main Verb Example
I don’t like I don’t like coffee.
You don’t work You don’t work on Sunday.
They don’t live They don’t live there.
She doesn’t play She doesn’t play hockey.
He doesn’t drink He doesn’t drink tea.

⚠ Important Rule

❌ She doesn’t plays soccer.
✅ She doesn’t play soccer.

When we use doesn’t, the verb goes back to base form.

🔎 BE Questions vs DO Negatives

✅ A) Verb “Be” Negatives

Structure:
Subject + am not / is not / are not

positive negative
She is happy. She isn’t happy./She’s not happy.
They are tired. They aren’t tired./They’re not tired.
He is a teacher. He isn’t a teacher./He’s not a teacher.

👉  We DO NOT use don’t/doesn’t with “be”.

❌ She doesn’t be happy.
✅ She isn’t happy.

✅ B) Action Verb Negatives (Simple Present)

Structure:
Subject + don’t/doesn’t + base verb

positive negative
She works here. She doesn’t work here.
They live in Mexico. They don’t live in Mexico.
He plays soccer. He doesn’t play soccer.

👉 Use don’t/doesn’t with action verbs.

🌎 4. English vs Spanish

In Spanish, we change the verb form.
In English, we use don’t / doesn’t.

spanish english
No me gusta el café. I don’t like coffee.
Ella no trabaja aquí. She doesn’t work here.
No estudian inglés. They don’t study English.

👉 “Don’t” and “doesn’t” are grammar helpers.
👉 They do NOT translate word-for-word.

⚠ Common A1 Mistakes

❌ 1. Adding -S after DOESN’T

She doesn’t works here.
✅ She doesn’t work here.

❌ 2. Using DON’T with He/She/It

He don’t like coffee.
✅ He doesn’t like coffee.

❌ 3. Using DOESN’T with I/You/They

They doesn’t live here.
✅ They don’t live here.

❌ 4. Using DON’T with BE

She doesn’t be tired.
✅ She isn’t tired.

📝 6. Mini Quiz (Self-Study)

Choose the correct answer.
  • 1) She ___ like spicy food.
    a) don’t b) doesn’t
  • 2) They ___ work on Sundays.
    a) don’t b) doesn’t
  • 3) He ___ play soccer.
    a) don’t b) doesn’t
  • 4) I ___ live in Canada.
    a) don’t b) doesn’t
  • 5) She ___ tired.
    a)is b) isn’t
Answers & Scoring

1.  b) Doesn’t

2.  a) don’t

3.  b) Doesn’t

4.  a) don’t

5.  b) isn’t

🎯 Your Score

5/5 → Excellent! You understand DO vs BE questions.
4/5 → Very good! Review small mistakes.
3/5 → Review the rules and try again.
0–2 → Study the comparison chart again and retake the quiz.

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Horario de atención: Lunes a viernes, 10:00 a.m. – 4:00 p.m.

DON’T & DOESN’T — Negative Sentences in the Simple Present © 2025 by Joe Ehman is licensed under Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International