Modal Verbs - Exercise 1

Choose the correct modal verb in each sentence.

1. You wear a helmet on a building site. It's the law. 2. I'm not sure, but she be at home now. 3. You smoke in here. It's forbidden. 4. We hurry. We have plenty of time. 5. That be John. He's in Japan this week. 6. you help me with these bags, please? 7. You see a doctor about that cough. 8. When I was a child, I spend hours reading. 9. I open the window? It's very hot in here. 10. He be tired. He's been working since six this morning.

Modal Verbs - Exercise 2

Complete the sentences with the modal verb in brackets + have + past participle.

1. The lights are off. They (must / go) to bed. 2. I (should / study) harder for the exam. I failed it. 3. You (needn't / bring) your laptop. We have one here. 4. She isn't here yet. She (might / miss) the bus. 5. He (can't / finish) already. He only started ten minutes ago. 6. We (could / take) the train, but we drove instead. 7. I'm sorry. I (shouldn't / say) that. 8. They (must / be) delighted with the news. 9. You (could / tell) me you were coming! 10. The keys aren't here. Someone (may / take) them.

Modal Verbs - Exercise 4

Complete the second sentence so that it means the same as the first, using the word in capitals.

1. It's forbidden to use your phone here. (MUSTN'T) You your phone here. 2. It isn't necessary to book a table. (NEED) You a table. 3. I'm sure he is at work. (MUST) He at work. 4. It's a good idea to arrive early. (SHOULD) You early. 5. I'm sure she didn't see us. (CAN'T) She us. 6. It was a mistake to tell him. (SHOULDN'T) You him. 7. Perhaps they forgot about the meeting. (MIGHT) They about the meeting. 8. I managed to finish on time. (ABLE) I finish on time. 9. It's obligatory to wear a uniform. (HAVE) You a uniform. 10. It wasn't necessary for me to pay. (HAVE) I pay.