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MODALS FOR DEDUCTIONS PAST AND PRESENT
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There is no more milk in the fridge, so I believe Mum forgot to buy some.
Mum must have forgotten to buy milk.
Oops!
Okay!
Perhaps he was at home yesterday.
He may/might have been at home yesterday
Oops!
Okay!
I’m certain that she is a doctor.
She must be a doctor.
Oops!
Okay!
I'm certain Jane wasn't late yesterday.
Jane can't have been late yesterday.
Oops!
Okay!
I had an umbrella when I came out but now I'm not sure where it is. I (leave) ------------- it on the bus.
might/may have left
Oops!
Okay!
Did you hear me come in last night? No, I ----- (be) asleep.
must have been
Oops!
Okay!
It is impossible that he is Spanish.
He can't be Spanish.
Oops!
Okay!
I'm completely sure that they aren't at work today.
They can't be at work today.
Oops!
Okay!
John will probably come to the party.
John may/might come to the party.
Oops!
Okay!
It's snowing and Kate is shivering. She ------------- be cold.
must
Oops!
Okay!
Perhaps he is working today.
He may/might be working today.
Oops!
Okay!
It is impossible that you forgot your wallet at home. You paid for our lunch today.
You can't have forgotten your wallet at home.
Oops!
Okay!
I don't believe you are telling the truth.
You can't be telling the truth. / You must be lying. / You must be telling a lie.
Oops!
Okay!
It's not possible John has made dinner yet.
John can't have made dinner yet.
Oops!
Okay!
It is possible that you left your wallet at home.
You might have left your wallet at home.
Oops!
Okay!
It's likely that Mary will come for dinner tonight.
Mary might / may come for dinner tonight.
Oops!
Okay!
I'm very sure you forgot to do your homework.
You must have forgotten to do your homework.
Oops!
Okay!
I'm very sure that Susan is not the thief.
Susan can't be the thief.
Oops!
Okay!
I'm absolutely sure the cat is somewhere in the house.
The cat must be somewhere in the house.
Oops!
Okay!
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