Modal verbs
exercises PDF worksheets

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Modal verbs

  • Exercises with answers
  • PDF worksheets with keys
  • Grammar rules with examples

English grammar books PDF

PDF book 1: English tenses exercises

PDF book 2: English grammar exercises

PDF book 3: English grammar rules

Read more about English grammar books PDF on e-grammar.org.


Modal verbs exercises with answers

Online

Can, may, must, needn't:

Modal verbs exercise 1 | Modal verbs exercise 2

  • Rewrite sentences and keep the same meaning.

Modal verbs exercise 3 | Modal verbs exercise 4

  • Complete sentences with modal verbs.

Modal verbs exercise 5

  • Put words in the correct order.

Modal verbs exercise 6 | Exercise 7

  • Choose correct answers (multiple choice).

Can - Be able to

  • 'Can' compared with 'be able to' in all tenses (online exercises and grammar rules).

Modal verbs worksheets PDF

Printable PDF exercises with answers

Can - Can't (Modal verbs PDF 1 - 4)
Positive, negative and question forms.

Must - Mustn't (Modal verbs PDF 1 - 4)
Practise modal verbs of obligation.

Must, Have to, Mustn't, Needn't (Modal verbs PDF 1 - 4)
Compare these modal verbs in exercises with answers.

Can, May, Must, Have to (Modal verbs PDF 1 - 2)
Mixed modal verbs in positive and negative forms.

Can - Be able to worksheets
'Can' compared with 'be able to' in all tenses (PDF exercises).

  • English grammar worksheets PDF
    All PDF exercises on e-grammar.org.
  • English grammar tests PDF Marked grammar tests with keys.

PDF grammar rules:

English grammar

Modal verbs

Examples and grammar rules

We use modal auxiliary verbs can, may, must in the English language for various meanings - ability, possiblity, probability, certainty, permission, prohibition, obligation, opinion, speculation, etc.

Can

1. It is used to express the ability to do something.

I can swim very well.
Can he speak English fluently? - No, he can't.
We cannot sing at all!

2. It expresses the possibility to do something.

We can go to the seaside at last. Our holidays start next week.

3. We use it to say that something is probable.

It can be John. He has blond hair and he is wearing glasses.

4. It expresses the permission to do something.

Why not? You can marry her. She is a nice girl.

May

1. It is used for permissions.

You may borrow my car. I won't need it.
May I smoke here? - No, you can't, I'm sorry.

2. It is used to express probability or prediction.

They may call tomorrow. I hope so.

The main difference between may and can is in style. May is more formal than can. Can is typical of spoken English.

3. The opposite of may is must not or may not.

May I smoke here?
- You mustn't smoke here. (strong prohibition)
- You may not smoke here. (more polite, very formal)
- You can't smoke here. (informal spoken English)

Must - Need not

1. Must is used for strong obligations. It is personal, because it expresses the speaker's opinion or will.

I must clean my teeth. I want to be healthy.
You must go there. And do it right now!

2. It means a strong recommendation.

You must see it. It's the best film I've ever seen.

3. We use it to show the certainty of the speaker.

They must be at school by now. It's already 9 o'clock.

4. The opposite of must is need not.

You needn't wash up. I've already done it.

Must not has a different meaning. It is used to express prohibition that involves the speaker's will.

We mustn't come late today. Or the teacher will be very angry.
He mustn't enter this room. It is dangerous.

Note

Normally, these modal auxiliary verbs are not used in different tenses. The past tense of can is could, may and must, however, only have the present form. All the other tenses must be formed in a different way.

We make the passive voice with a verb + be + past participle: This can be done. The laws must be respected.

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