Modal verbs

Here you can have a look at an explanation about the use of some of the modal verbs we've seen in class.

Exercises:

One.

Two.

Three. (Ought to)

Can & Must

Can and Must are both Modal Verbs. That means that they do not have an infinitive and they have the same form for all the persons. Some tenses are missing too.
Here you have some exercises:

Can
One
Two

Must
One
Two

Can & Must