Diana ________ be very rich. She earns more than $800, and she has a company car.
Diana MUST be very rich. She earns more than $800, and she has a company car.
You couldn't have seen Jordan because he was with me at that time.
Impossible
Steal
400 Points from the other team
Certainly, she knew that something was wrong.
She must have known that something was wrong.
This must be the right answer but we'll have to check the answers with the teacher.
This COULD be the right answer but we'll have to check the answers with the teacher.
I ________ be late for this morning's class. It's ten o'clock already.
I MAY be late for this morning's class. It's ten o'clock already.
Half credit for MUST
If it's midday in London, it must be seven a.m. in New York.
Very certain
Thanks for the perfume, Tom. It ________ have cost you a fortune.
Thanks for the perfume, Tom. It MUST have cost you a fortune.
Of course, she is trying to help you.
She must be trying to help you.
I'll definitely be at the party but I'm not sure yet.
I MIGHT be at the party but I'm not sure yet.
Where is the applicant?
– He ________ be waiting in the hall.
Where is the applicant?
– He MUST be waiting in the hall.
MIGHT also acceptable
Other company's activities might include R&D and purchasing.
Probable but not certain
You ________ have seen the report yesterday. It has been printed just now.
You COULDN'T have seen the report yesterday. It has been printed just now.
She is certain to be waiting for you in the reception.
She must be waiting for you in the reception.
Danny thinks she's from The States. But I think she should be from Scandinavia.
Danny thinks she's from The States. But I think she MIGHT be from Scandinavia.
Jack isn't here yet so he _________ waiting for Rose, who is always late.
Jack isn't here yet so he MUST BE waiting for Rose, who is always late.
He can't be working so late. Everybody's gone.
Very certain
If our factory was paid half a million dollars to take care of nuclear waste, I ________ have gotten my salary over the last two years.
If our factory was paid half a million dollars to take care of nuclear waste, I MIGHT have gotten my salary over the last two years.
I haven't seen him around. Probably, he has already left.
I haven't seen him around, he might have already left.
It may be true about a dinosaur living in the pond. It is impossible.
It CAN'T be true about a dinosaur living in the pond. It is impossible.
She _________ not have known you were related, you should tell her when you see her.
She MIGHT not have known you were related, you should tell her when you see her.
MUST also acceptable
-Did you get a chance to see the sights?
-Not yet. I may get it during the future trips.
50/50
You ________ have taken the Circle Line. It doesn't go through St. Paul.
You COULDN'T have taken the Circle Line. It doesn't go through St. Paul.
I am sure she didn't forget.
She couldn't have forgotten.
The exam must be easy, you never know.
The exam MIGHT be easy, you never know.