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