I regret not studying for the French exam. I [..........].
could have studied
would have studied
must have studied
should have studied
If he had studied harder, he [.........] the exam.
can't have passed
could have passed
couldn't have passed
must have passed
I'm not sure why he missed yesterday's band practise. He [..........] ill.
needn't have been
must have been
might have been
can't have been
I didn't know you were interviewed in the local news. I [..........] it.
must have watched
would have watched
should have watched
can't have watched
I'm not sure where the umbrella is... She [..........] at the office. I'll check there.
might have left
should have left
could have left
can't have left
I [.......] with you to the cinema, but you didn't ask me to.
can't have come
should have come
must have come
could have com
I didn't know you had trouble with maths. I [..........] you.
needn't have helped
must have helped
would have helped
couldn't have helped
Today is the play and he still doesn't know all of the words by heart. He [..........] them by now.
should have learnt
must have learnt
shouldn't have learnt
couldn't have learnt
I don't know why he isn't answering his phone. He [.............] it.
can have lost
must have lost
might have lost
should have lost
You look tired. You [..........] for many hours.
might have been working
can't have been working
must have been working
should have been working
He [.......] the assignment by now; the deadline was yesterday.
might have submitted
must have submitted
can't have submitted
should have submitted
You're late. You [..........] here an hour ago.
can't have been
must have been
should have been
couldn't have been
Tom loves horror films. He [..........] this thriller.
couldn't have enjoyed
can't have enjoyed
must have enjoyed
might have enjoyed
She [.........] have been to Italy last month. I ran into her at the supermarket.
couldn't have been
must have been
can't have been
mustn't have been