2. We use modal verbs to show if
we believe something is certain,
probable or possible (or not).
We also use modals to do things like
talking about ability, asking permission
making requests and offers, and so on.
3. Simple and Phrasal Modal
Simple modals are the most familiar
Can Could Must
May Might Shall Should
Will Would May Might
4. Simple and Phrasal Modal
Phrasal modals (also known as periphrastic
modals) are phrases formed with the verbs be
or have.
have (got) to, be able to,
be supposed to, be allowed to,
be going to, used to,
be about to, be permitted to,