ABILITY
When I was 3, I __ lick my feet.
could / was able to
A: Queen Elizabeth, ___ I please speak with you?
May / could - more formal
Can - informal
I felt so dizzy yesterday; I _____ ____ ____ (drink) more water.
Should have drunk
I __ do my homework every day.
Must / have to
She ______ be in New York city.
might / may
I __ play the guitar, I have a lesson every week.
can / am able to
A: Excuse me miss, ___ you pass me my backpack?
Could / can / may
People ___ smoke; it is bad for your health.
Shouldn't
My sister and I ___ sleep late on weekdays.
Mustn't / can't
A: Someone rang the door bell.
B: It _____ be the postman; he always comes at 7. [strong]
must
We ___ do the homework yesterday, because we didn't understand it.
couldn't / weren't able to
Miss, ___ I go to the bathroom?
Can / could / may
You ____ drink coke, instead, you ___ drink water
Shouldn't, should
We all ___ respect people.
Have to / must
It _____ rain tomorrow.
may / might
Last year, I ___ speak English, but now I ___ do it.
couldn't / wasn't able to
can / am able to
__ I get the soup with the chicken, please?
Could / can / may
A: ___ I call my friend?
B: I think, you ___. It's 2 am
Should, shouldn't
I ____ [not necessary] to wear uniform to school, but I ____ [obligation] wear the school shirt when there is an event.
don't have
must / have to
They ______ win the competition. They've been training very hard.
may / might
What modal verbs do we use to express an ability?
Can, could and be able to
What modal verbs do we use to express/ask permission or request?
Can, could, may
What modal verbs do we use to express advice?
Should
should have
What modal verbs do we use to express an obligation?
Must, Have to
What modal verbs do we use to express a possibility?
Might, may, must