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COMMON CORE

Teacher: HASSAN KHEDDA

Unit 06: Health and Welfare

Grammar:

Modal verbs: Can, Can’t, Must, Mustn’t

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Monday, March 28th, 2022.

Unit 6: Health & Welfare

Grammar

Modal Verbs: Can/ Can’t/ Must/ Mustn't

Practice:

Exercise 1: Complete the sentences using: can, can’t, must, mustn’t.

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1. Children………… respect their parents.

2. Jamal……… speak Turkish language.

3. ______ I go to the Cinema with my friends, Mum?

4. I …………….. drive a car.

5. You…………. break the law.

6. Students ……………… respect their teachers.

7. You…………….. travel to France if you don’t have money.

8. You ……………. smoke here.

9. You ……………………… stop at a red light.

must

can

Can

can

Mustn’t

Can’t

must

must

Mustn’t

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Monday, March 28th, 2022.

Unit 6: Health & Welfare

Grammar

Modal Verbs: Can/ Can’t/ Must/ Mustn't

Modal Verbs

Use

Examples

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Can

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Ability

  • I can speak Chinese
  • I can ride a bicycle.
  • We can speak Tamazight and Arabic.

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Can

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Permission

  • Can I use your pen, please?
    • Yes, you can.
    • No, you can’t.
  • You can use your phone now.

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Must

​

Obligation

  • You must study harder !
  • You must stop at a red light.
  • You must respect your parents.

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Mustn’t

​

Prohibition

  • You mustn’t use your phone in the classroom.
  • You mustn’t drive fast in front of schools.
  • You must not smoke here.

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Monday, March 28th, 2022.

Unit 6: Health & Welfare

Grammar

Modal Verbs: Can/ Can’t/ Must/ Mustn't

Examples:

    • I can speak five languages.
    • Sarah can swim very well.
    • We must clean our classroom.
    • We mustn't break the law.

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Tuesday, March 29th, 2022

Unit 6: Health & Welfare

Grammar

Modal Verbs: Have to/ Don’t have to/ May

Modal Verbs

Use

Examples

​

Have to

Has to

​

​

Necessity

  • I have to take this medicine to feel better.
  • You have to go to school.
  • They have to clean the house.
  • He has to see the doctor.
  • She has to study harder.

Don’t have to

Doesn’t have to

Lack of Necessity

  • You don’t have to come to school on Sundays.
  • We don’t have to watch this movie.
  • She doesn’t have to learn your language.

​

May

​

Permission

  • May I go to the cinema tonight?
    • Yes, you may.
  • May I use your phone, John?
    • No, you may not.
  • May I go home? I don’t feel well.
  • Yes, you may go home.

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Monday, March 28th, 2022.

Unit 6: Health & Welfare

Grammar

Remember:

    • Have to = it is important or mandatory to do something.

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    • Don’t have to = it is your choice, you can do it or not.

Modal Verbs: Have to/ Don’t have to/ May

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Have to

Doesn’t have to

May not

Have to

Has to

Have to

May

may

may

Don’t have to