Table of Contents
Quick Review
Modal verbs can refer to the present or the past.
- Present deduction → must, may, might, could
- Past deduction/speculation → must have, might have, could have
- Obligation → have to / had to
- Ability → can / could
👉 Need a full explanation? Read our complete guide to present and past modal verbs here.
Now practice with these “Present and Past Modal Verbs Exercises”.
Present and Past Modal Verbs Exercises
Please do the exercise below on the present and past of modals and click the button to check your answers.
Before doing the exercises, you may want to read the lessons on modals and present and past modals.

Grammar Exercise 1 – Present and Past Modal Verbs (Multiple Choice)
Grammar Exercise 2 – Modals of Deduction and Speculation (Extra Practice)
Choose the correct modal verb.
- She isn’t at home. She ______ be at work.
a) must
b) must have
c) should - They look exhausted. They ______ all night.
a) must work
b) must have worked
c) could working - He ______ the exam yesterday because he didn’t study.
a) can’t pass
b) couldn’t have passed
c) must pass - I’m not sure, but she ______ come later.
a) might
b) had to
c) must - We were late. We ______ take a taxi.
a) have to take
b) had to take
c) must have taken - He speaks perfect Spanish. He ______ live in Spain before.
a) must live
b) must have lived
c) can live - You ______ her the truth yesterday. It was important.
a) should have told
b) can tell
c) might tell - That noise is strange. It ______ the wind.
a) must be
b) must have been
c) had to be - When I was a child, I ______ run very fast.
a) can
b) could
c) must - They didn’t answer. They ______ our message.
a) might not receive
b) might not have received
c) can’t receive
1. a) must (Present deduction)
2. b) must have worked (Past deduction)
3. b) couldn’t have passed (Past deduction – negative)
4. a) might (Future possibility)
5. b) had to take (Past obligation)
6. b) must have lived (Past deduction)
7. a) should have told (Past advice/regret)
8. a) must be (Present deduction)
9. b) could (Past ability)
10. b) might not have received (Past possibility – negative)
2. b) must have worked (Past deduction)
3. b) couldn’t have passed (Past deduction – negative)
4. a) might (Future possibility)
5. b) had to take (Past obligation)
6. b) must have lived (Past deduction)
7. a) should have told (Past advice/regret)
8. a) must be (Present deduction)
9. b) could (Past ability)
10. b) might not have received (Past possibility – negative)
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?


