I tried to complete the Sunday Sudoku, but that was a terrible mistake. I didn't sleep all night!
I a) mustn't b) shouldn't c) mightn't have tried to complete the Sunday Sudoku...
I shouldn't have tried to complete the Sunday Sudoku...
It's not possible that you were a TV star in the nineties - you're far too young!
You a) can't b) might c) must have been a TV star in the nineties - you're far too young!
You can't have been a TV star in the nineties!
I'm certain that you're not 50 - you don't look a day over 40!
You a) can't b) might c) must be 50!
You can't be 50!
I'm sure you are happy that your exams are over.
You a) can't b) might c) must be happy that your exams are over.
You must be happy that your exams are over.
It's possible that my parking ticket fell out of my pocket while we were walking back from the cinema.
My parking ticket a) can't b) might c) must have fallen out of my pocket while walking back from the cinema.
My parking ticket might have fallen out of my pocket while walking back from the cinema.
It's possible that Amy stopped talking to you because you didn't invite her to your birthday party.
Amy a) can't b) might c) must have stopped talking to you because you didn't invite her to your birthday party.
Amy might have stopped talking to you because you didn't invite her to your birthday party.
It's possible that the man got his pedigree Labrador from the Internet. The man a) can't b) might c) must have got his pedigree Labrador from the Internet
The man might have got his pedigree Labrador from the Internet.
I'm fairly sure that you didn't see Andrew in the street yesterday - I think he's still on holiday, isn't he?
You a) can't b) couldn't c) must have seen Andrew in the street yesterday...
You couldn't have seen Andrew in the street yesterday...
I expect that Donald will be home by now - he normally finishes work early on a Friday and races home to see his favourite cartoon!
Donald a) should b) might c) must have arrived home by now.
Donald should have arrived home by now.
I expect that the car keys will be on the dresser next to the front door - That's where I always leave them.
The car keys a) can't b) might c) should be on the dresser next to the front door.
The car keys should be on the dresser next to the front door.
The lights are off - I suppose they a) must b) mustn't c) shouldn't be home right now.
They mustn't be home right now.
