Practice modal verbs with these interactive exercises. These modal verbs exercises with answers help you understand ability, obligation, permission, advice, and possibility.
Check your answers instantly and improve your grammar step by step.
Table of Contents
Do you need to refresh your grammar knowledge? Jump to the quick review of modal verbs in English.
Modal Verbs Exercises with Answers

Do the exercises below on modal verbs and click the button to check your answers.
Before doing the exercises, you may want to read the lesson on modal verbs
Exercise 1: Interactive Multiple Choice Quiz
- Choose the correct modal verb from the list provided.
- Only one option will complete each sentence logically.
- Read each sentence carefully and think about what the missing modal verb should express (e.g., possibility, obligation, permission, or ability).
Exercise 2: Matching
What Do These Modal Verbs Express? Match each sentence with its meaning.
| Sentences | Meanings |
|---|---|
| 1. Drivers must stop when the traffic lights are red. | a) Ability |
| 2. You can use my phone if you need it. | b) Permission |
| 3. She can swim very fast. | c) Obligation |
| 4. You should study more for the exam. | d) Advice |
| 5. It might snow tonight. | e) Possibility |
| 6. Students mustn’t run in the corridors. | f) Prohibition |
| 7. May I leave the classroom early today? | g) Request for permission |
2 → b (Permission)
3 → a (Ability)
4 → d (Advice)
5 → e (Possibility)
6 → f (Prohibition)
7 → g (Request for permission)
Exercise 3: Sentence Transformation
Rewrite each sentence using a suitable modal verb. Do not change the original meaning.
- It is possible that it will rain later.
→ It ____________ rain later. - It is not necessary for you to bring food.
→ You ____________ bring food. - It is forbidden to park here.
→ You ____________ park here. - She knows how to swim very well.
→ She ____________ swim very well. - It is a good idea for you to see a doctor.
→ You ____________ see a doctor. - I am sure he is at home. The lights are on.
→ He ____________ be at home. - Are you able to lift this box by yourself?
→ ____________ you lift this box by yourself? - It was not allowed to use phones during the exam.
→ We ____________ use phones during the exam. - Perhaps they are waiting for us outside.
→ They ____________ be waiting for us outside. - It is an obligation for drivers to stop at a red light.
→ Drivers ____________ stop at a red light.
2. don’t have to / needn’t
3. mustn’t
4. can
5. should
6. must
7. Can / Could
8. weren’t allowed to / couldn’t
9. might / may
10. must
Quick Recap: Modal Verbs in English

What Do Modal Verbs Express?
- Ability (can, could)
- Obligation & necessity (must, have to)
- Permission (may, can)
- Advice (should, ought to)
- Possibility (might, may)
Frequently Asked Questions about Modal Verbs
What are modal verbs in English?
Modal verbs are auxiliary verbs used to express ability, possibility, permission, obligation, advice, or necessity. Common modal verbs include can, could, may, might, must, should, and will.
What is the rule of modal verbs?
Modal verbs are followed by the base form of the main verb (without to). They do not change form for tense or subject, and questions and negatives are formed without “do/does.”
What are the 10 examples of modal verbs?
Ten common modal verbs in English are:
– can, could, may, might, must, should, will, would, shall, and ought to.
How do you practice modal verbs?
You can practice modal verbs by doing grammar exercises, completing sentences, transforming sentences, and choosing the correct modal based on meaning (ability, obligation, permission, etc.). Interactive exercises with answers are especially effective.
Are modal verbs followed by “to”?
Most modal verbs are not followed by “to.” They are followed by the base verb (e.g., can go, must study). The main exception is ought to, which requires to.
Related Pages
- Modal verbs
- Present and past of modals
- Modals for Obligation
- Exercise on modals
- Exercise on modals in the past
- Exercise on modals: mustn’t or needn’t
- Exercise on Modals for Obligation: must, mustn’t, don’t have/doesn’t have to
- Exercise on the meaning of modals
- Must and have to
- Shall and will
- Is need a modal verb?
- Modals on Wikipedia
Modal Verbs Worksheet:


