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Past modals
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A: Did you see my vacation photos? B: I did! It _________ (be) a lot of fun, judging by the big smiles.
must have been
Oops!
Okay!
You _______ (be) ill yesterday. Jessie saw you at the bowling alley.
couldn't have been
Oops!
Okay!
We _____ (leave) the burgers on the grill for so long. They were all burnt.
shouldn't have left
Oops!
Okay!
Where's Clare? Her bag's here and her computer's still on so she _____ (go) home.
couldn't have gone
Oops!
Okay!
You _______ (pay) more attention! Now we are lost.
should have paid
Oops!
Okay!
Nobody knows exactly why he died. But we think it ______ (be) an accident.
might have been
Oops!
Okay!
Before we all had digital cameras, it _____ (be) expensive to keep buying film for your camera.
must have been
Oops!
Okay!
I wonder why Jim hasn't arrived yet? He _______ (take) the wrong train.
might have taken
Oops!
Okay!
I have a stomach ache. I _____ (eat) so much.
shouldn't have eaten
Oops!
Okay!
I didn't know you were going to Phil's party yesterday. You ______ (tell) me!
should have told
Oops!
Okay!
I don't know where they went--they ________ (go) to Paris or Marseille.
could have gone
Oops!
Okay!
I didn't know you were free last Saturday. We ___ (go) to a concert.
could have gone
Oops!
Okay!
I _________ (review) more for the exam. I was lazy, and now I'll fail!
should have reviewed
Oops!
Okay!
Maybe the CIA killed president JFK (may)
The CIA may have killed JFK.
Oops!
Okay!
The Easter Island statues definitely were not created by aliens.
The Easter Island Statues couldn't have been / must not have been created by aliens.
Oops!
Okay!
No way, she _____ (clean) the whole house on her own in two hours. She must have had some help.
couldn't have cleaned
Oops!
Okay!
The window was broken, so the thieves _______ (get) in through that window.
must have gotten
Oops!
Okay!
It's possible that this artwork was made in Europe.
This artwork might have been made in Europe
Oops!
Okay!
I'm not surprised that you're tired. You _____ (stay) up so late.
shouldn't have stayed up
Oops!
Okay!
A: I don't think he remembers me. B: Come on, he _________ (forget) you already! He only met you last week!
couldn't have forgotten
Oops!
Okay!
Sarah looked very happy. She ______ (pass) her driving test. She had been preparing for a long time.
must have passed
Oops!
Okay!
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