past modals of speculation 9a

My brother _______have left his suitcase in the car. Let’s check to see.

• can't

• might

You would / must have taken a wrong turning back there because we are lost.

• would

• must

Dad is late. Might he stay / have stayed at the office to finish some work?

• stay

• have stayed

Delia mustn’t / couldn’t have put any sugar in these biscuits because they aren’t sweet!

• mustn't

• couldn't

        The company was accused of selling the data, but they could have lost / lose it in a computer glitch.

• have lost

• lose

We should phone John and tell him the news because he may not / mustn’t have checked his email today.

• may not

• mustn't

The babysitter would put / have put the kids to bed half an hour ago. There’s no need to check. She’s very reliable.

• put

• have put

Don’t be angry with Timothy yet. He might not / wouldn’t have broken that window.

• might not

• wouldn't

  Eva looks really scared. She must have seen / see something at the castle.

• have seen

• see

Mum might / would have written this note telling us to buy food. I know her handwriting. Let’s go to the shop.

• might

• would