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Past Modals
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Jack the Ripper killed his victims with surgical precision, so people think he (may/be) a doctor.
may have been
Oops!
Okay!
I (could not/steal) your cookie! I was gone all day!
couldn't have stolen
Oops!
Okay!
Q: Was he on vacation last week? A: (short answer) I don't know, but he ______________. I didn't see him.
may have been/could have been/might have been
Oops!
Okay!
His hair looks great. He (must have gone/couldn't have gone) to the barber yesterday.
must have gone
Oops!
Okay!
He doesn't have any money! He (could not/buy) a Lamborghini!
couldn't have bought
Oops!
Okay!
He (must/be) really happy when he got 100% on his test!
must have been
Oops!
Okay!
My brother (might/steal) my cookie.
might have stolen
Oops!
Okay!
This food is disgusting! You (can't have/must have) followed the recipe!
can't have
Oops!
Okay!
He's starving. He (must not/eat) breakfast.
must not have eaten
Oops!
Okay!
I don't know why my friend is angry. He (might/have) a fight with his mom.
might have had
Oops!
Okay!
What was that sound??? It (had to/be) a ghost!
had to have been
Oops!
Okay!
Some people think that Princess Anastasia (could/survive) the assassination of her family.
could have survived
Oops!
Okay!
Q: Did he buy a gift for the party yet? A: (short answer) Yeah, he _________, but I don't know.
might have/may have/ could have
Oops!
Okay!
Some people think aliens (might/build) the Pyramids
might have built
Oops!
Okay!
Aliens (might/crash) in Area 51 in the 50s.
might have crashed
Oops!
Okay!
She looks really tired. She (must not/sleep) well last night.
must not have slept
Oops!
Okay!
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