Modal verbs

He said Mary ... have told them everything.

He said they ... to tell the teacher about it.

We knew he ... help his sister.

John thought that he ... have to take care of it.

I knew I ... have to explain to Mary why I wanted to see her.

He mentioned he ... a lot of training before the competition.

He said he ... to hurry as it was already late.

It was raining and she ... take an umbrella.

The boy ... be reading something funny. He is laughing all the time.

We thought he ... have been informed about the matter.

She suggested that he ... taken offence at your words.

He ... gone out when it was raining.

I ... understand why he should be angry with me.

He didn't understand why he ... gone there.

There is no reason why you ... help her.

He ... pay more attention to his English.

I you don't want to miss the train, you ... take a taxi.

He ... know this man.