Modal verbs, functions

You have to walk the dog two times per day

She may play with your heart

I can learn English in this class

It might rain today, but the sun is up

We must come to class everyday

They should come early to the party

I could play soccer, when I was a kid

I would like to eat some chips now

wishing for something

abilities in the past

possibility (but low)

a requirement that is not an obligation

abiliites in the present

an obligation

a recommendation

a possibility