It may rain tomorrow
You can go now
You must obey the law
Prices will go up next summer.
It's alright, I'll pick it up.
We should be back by midnight.
She should call the police.
He said he might change his mind.
It could be that he missed the train.
This might fail.
May I speak?
I can do several things at the same time.
They left so early, they must be home by now.
Could you move your bag, please?
