Should
he should ask his friends to help him.
ought to
you ought to rest a little bit more.
must
you must study tomorrow
have to
you have to learn at least five new words every day.
musntn´t
you mustn´t smoke inside the building
don´t have to
we don´t have to be in the meeting next week.
don´t need to
you don´t need to pick me up, I´ll get the bus.
needn´t
she needn´t buy the new book.
be supossed to
he was supossed to arrive tomorrow.
may
you may take the exam next month
might
it might rain this afternoon
could
You could travel by train
can
Can I go to the toilet?
be able to
I will be able to cook delicious dishes
should
We should stay here at least an hour
can´t
We can´t write them a letter.
must
She must return later