I'm sure that Helen feels really lonely. Helen...
Helen must feel really lonely.
You're not allowed to park here. You...
You can't/mustn't park here.
I'm sure that Brenda isn't over thirty. Brenda...
Brenda can't be over thirty.
Do I need a different driving license for a motorbike? Do I...
Do I have to have a different driving license for a motorbike?
You needn't come with me if you don't want to. You...
You don't have to come with me if you don't want to.
Maybe Tom is looking for a new place to live. Tom...
Tom could be looking for a new place to live.
Why aren't you at home revising for your exam? You...
You should be revising for your exam at home now.
Students are not allowed to leave the classroom. Students...
Students mustn't/can't leave the classroom.
I would like to have the ability to speak many foreign languages. I...
I would like to be able to speak many foreign languages.
Did you manage to stop him? Were...
Were you able to stop him?
Maybe Paul is arranging the ceremony for Friday. Paul...
Paul might be arranging the ceremony for Friday.
It would be a great idea if Harry took a holiday. Harry...
Harry should take a holiday.
