Children should/have to go to school.
should
have to
You don't have to/can't come if you don't want to
don't have to
can't
You shouldn't/don't have to smoke so much
shouldn't
don't have to
People must/should have a driver's license to drive a car.
can
have to
People can't/shouldn't be rude to each other
can't
shouldn't
In France, you have to/can eat cheese as a dessert.
can
have to
Children musn't/shouldn't be left home alone
shouldn't
musn't
You can/have to go to the beach even if it's cold
can
have to
You must/should give your seat to an elderly person on the bus
should
must
Students must/have to study if they want to pass the exam.
have to
must
You shouldn't/don't have to watch the prequel of the movie, it doesn't add anything important to the plot.
shouldn't
don't have to
I should/have to stop going to bed so late, I always get up so late!
should
have to
You must/have to save some money if you want to go on holidays.
must
have to
He shouldn't/musn't watch TV this weekend, he's grounded!
shouldnt
musn't
You don't have to/shouldn't pay me back, it's only 5€!
shouldn't
don't have to
I can't/musn't come tonight, I have the flu!
can't
musn't
