The modal verbs are:
- can (could)
- must
- may (might)
- shall (should)
- will (would)
We use modals to show if we believe something is certain, possible or impossible:
My keys must be in the car.
It might rain tomorrow.
That can’t be Peter’s coat. It’s too small.
We also use them to do things like talk about ability, ask permission, and make requests and offers:
I can’t swim.
May I ask a question?
Could I have some tea, please?
Would you like some help?