1. You've got plenty of time. You needn't hurry. (Não há nec...

1. You've got plenty of time. You needn't hurry. (Não há necessidade)

2. There's a knock at the door. I'm expecting Paul. It must be him. (Dedução)

3. I can't get my phone to work. It could be out of order. (Dedução)

4. That was excellent work. But I must ask you a question. (Permissão)

5. She can do it without you. (Capacidade)

6. She can't be 35. She looks older than that. (Probabilidade)

7. I don't need to go to work on Saturdays. It's my day off. (Não há necessidade)

8. Tom has given me a letter to post. I mustn't forget to post it. (Proibição)

9. Ann stayed in bed this morning because she didn't need to go to work. (Não era necessário)

10. He could play chess when he was young. (Capacidade)

11. You can drive a car when you're 18. (Permissão)

12. Jack spends the whole day just walking around. He might have a job. (Possibilidade)

13. I could do a handstand, but now I'm too old. I can't do one anymore. (Capacidade no passado e agora)

14. My mother keeps telling me that we must wash our hands before we sit down at the dinner table. (Obrigação)