When do you use them?
What modals do you use to give advice?
should / ought to / had better
Complete: I think __________ your shoes off inside. (you/should/take)
I think you should take your shoes off inside.
Complete: Karen ______ play the vilolin
can/ can’t/ is able to
Students ________wear uniforms at some schools. It is a requirement.
have to / must
He cans carries his bike upstairs.
He can carry his bike upstairs.
What modals do you use for obligation/necessity?
must and have to
Give advice in this situation: My dog is sick.
You had better/ ought to/ should take him to the vet. (other options too)
I don't want to go to the pool. I_____ swim.
can't / am not able to
You ________ pay to visit most museums and art galleries in Washington, D.C. Entrance is usually free.
don’t have to
You must to do your homework every day.
You must do your homework every day.
What modals do you use for lack of obligation/necessity?
don't have to/doesn't have to
Give advice for this situation: I don't have any money for vacation.
You should________
______ I borrow your pencil?
Can
To avoid getting sick, you ____ wash your hands frequently.
must / have to / should
You supposed to drive the speed limit.
You are supposed to drive the speed limit.
What modals do you use to express prohibition?
be not allowed to / be not permitted to / must not
Give advice for this situation: I need some ideas to celebrate the end of the semester.
You should______ . / You ought to _________.
Tell me 3 things you can't do in your class.
You can't _______
Tell me 3 things students mustn't do in an exam.
Students mustn't ___________
What I should do with this?
What should I do with this?
What modals do you use to be polite?
could you / would you / may I
Give advice for this situation: My computer doesn't work.
You should go to the computer technician. (Other options available)
I will tell you the secret, but you________ tell anyone!!!
can't / aren't allowed to
You _________ use phones during tests.
I rather stay home than go out.
I would rather stay home than go out.