My leg hurts so much. I think I __________ it. (perhaps I have broken it)
I think I might/may have broken it.
The gate’s open and the dog has gone. We __________ it open when we went out. (I’m sure we left it open)
We must have left it open when we went out.
The cake’s burning! You __________ the oven on too high. (you definitely put the oven on)
You must have put the oven on too high.
Jeremy isn't here. He __________ the email about the meeting. (perhaps he didn’t see)
He might/may not have seen the email about the meeting.
I can’t find the milk. We __________ it all. (I’m sure we didn’t drink it)
We can't have drunk it all.
You __________ all of your homework. Let me see it. (it’s impossible you’ve finished)
You can't have finished all of your homework.
I'm sorry I didn't get your message. I ____________ my phone by mistake. (I’m sure I switched off)
I must have switched off my phone by mistake.
We’re lost. I knew we __________ the second exit at the roundabout!
I knew we should have taken the second exit at the roundabout!
This tastes too spicy. You __________ so much chilli.
You shouldn't have used so much chilli.
You __________ with James. He was perfect for you.
You shouldn't have broken up with James.
Jim’s already gone? I don’t believe it – he __________ for us.
He should have waited for us.
I’m afraid we can’t exchange the jacket now. You __________ the receipt.
You should have kept the receipt.
I __________ these jeans. They really don’t suit me.
I shouldn't have bought these jeans.
