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Modal verbs

Use

Examples

must

mustn’t

don’t have to

doesn’t have to

can

can’t

can

may

He is sick, so he must see a doctor.

You mustn't use your mobile phone at school. 

We don’t have to go to school on Sundays.�-She doesn't have to wake up early in the weekend.

I can swim. �He can play the guitar.

He is sick, so he can’t go to school.

Can I watch TV, mom? 

May I go out please?

Obligation

Prohibition

No obligation

Ability

Inability

Permission

Permission

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- �Fill in the gap with : “must“ , “ mustn’t“ or “don’t have to”�

  • 1- During an exam, you………..... copy from the other students.
  • 2- We have a lot of work tomorrow. You………................... be late.
  • 3- We…………………………… miss the train, because it's the last one tonight.
  • 4- He……………….... cook tonight because he's going to a restaurant.
  • 5- She is ill , so she…………… see the doctor.

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Mustn’t

Mustn’t

Mustn’t

doesn’t have to

must