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Modal Verbs · Exercises

C2Proficient practice

Subtle past modals, formal passives and fine meanings.

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What you’ll practise at C2

  • Negatives: can’t, shouldn’t, don’t have to
  • Questions: Can I…? Do I have to…?
  • Deduction: must / might / can’t be
  • Past modals: should have, must have, can’t have
  • needn’t have or didn’t need to?
  • Passive: must be done, can’t have been done

Need a refresher? Learn the modal verbs: rules, tables and audio examples.

Sample exercises

A taste of what’s inside. In practice mode every exercise is freshly generated.

  1. Complete the sentence. Meaning: it happened, but it was a bad idea.

    Ali lost all his photos. He _____ the backup.

    shouldn't have deleted · can't have deleted · should have deleted · must have deleted

    Show answer

    Ali lost all his photos. He shouldn't have deleted the backup.

    shouldn’t have + participle = you did it, but it was a bad idea.

  2. Write the passive.

    The boxes _____ (have to / carry) upstairs.

    Show answer

    The boxes have to be carried upstairs.

    Passive with a modal: modal + be + past participle (about the past: modal + have been + participle). The boxes have to be carried upstairs.

  3. Make a question.

    Noah has to practise the piano every day.

    Show answer

    Does Noah have to practise the piano every day?

    have to makes questions with do / does: Does Noah have to practise the piano every day?

  4. They didn’t do it. Choose the right form.

    My sister lent me her dress, so I _____ a new one.

    needn't have bought · needn't to buy · didn't need to buy · didn't need buy

    Show answer

    My sister lent me her dress, so I didn't need to buy a new one.

    didn’t need to = it wasn’t necessary (so we didn’t do it). needn’t have + participle = we did it, but it wasn’t necessary.

  5. Write the modal about the past.

    Carlos’s plants are dead. He _____ (shouldn't / water) them so much.

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    Carlos’s plants are dead. He shouldn't have watered them so much.

    Modal + have + past participle. shouldn’t have + participle = you did it, but it was a bad idea.

  6. Find the word that is wrong.

    I could have gave you a lift.

    Show answer

    I could have given you a lift.

    After have, use the past participle: give – gave – given. could have + participle = it was possible, but it didn’t happen.