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Modals for Deduction
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I'm sure you forgot doing your homework.
You can't have forgotten doing your homework.
Oops!
Okay!
I’m certain that she is a doctor.
She must be a doctor.
Oops!
Okay!
I'm sure Jane isn't late today.
Jane can't be late today.
Oops!
Okay!
Kate is shivering. She ------------- be cold.
must
Oops!
Okay!
I'm sure they aren't at work today.
They can't be at work today.
Oops!
Okay!
John will probably come to the party. John
John may come to the party.
Oops!
Okay!
It is possible that you forgot your wallet at home.
You might have left your wallet at home.
Oops!
Okay!
I'm sure Jane is sleeping now.
Jane must be sleeping.
Oops!
Okay!
I'm sure she is at home today.
She must be at home today.
Oops!
Okay!
Did you hear me come in last night? No, I (be) -----asleep.
must have been
Oops!
Okay!
Emily is crying. She --------------- be sad.
must
Oops!
Okay!
I had an umbrella when I came out but I haven't got it now.You (leave) ------------- it on the bus.
might have left
Oops!
Okay!
It is impossible that he is Spanish.
He can't be Spanish.
Oops!
Okay!
Perhaps he left the car unlocked.
He might have left the car unlocked.
Oops!
Okay!
Perhaps he was at home yesterday.
He might have been at home.
Oops!
Okay!
I'm sure the cat is in the house somewhere.
The cat must be at home.
Oops!
Okay!
Perhaps he is working today.
He may be working today.
Oops!
Okay!
I'm sure that Susan is not the thief.
Susan can't be the thief.
Oops!
Okay!
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