He should have bought some pencils.

I should not have bought such a thing.

I regret not having bought that house.

And that hospital could have afforded flashlights.

I am glad I did not buy such a thing.

I think you should've bought a better known brand.

Tom told me that he bought a house in Australia.

They could have afforded to purchase these things, but they didn't.

There has to be a way.

There's got to be a way.

That must have hurt!

There must be a misunderstanding.

There must be some misunderstanding.

There must be some mistake.

There must be a pattern.

Something must've happened.

It must have been terrible.

There must be more.

There must be a better way.

Must be difficult.

He must have been rich.

She must have been rich.

She must have been sick.

He must have left.

Somebody must have seen something.

Something must have gone wrong.

There must be a logical explanation.

There must be an organized attack.

Bob must have had an accident.

There must be some misunderstanding between us.

He must have missed the train.

He must have been home then.

He must have drunk too much last night.

She must have told a lie.

She must have studied very hard.

She must have been rich.

She must have been very beautiful.

She must have been very beautiful.

There must be something you can do.

I must have forgotten it.

These trees must be infested.

The film should have already started.

That must have been socially awkward.

There's got to be something you can do.

It must've cost a fortune.