Don't eat that. It ___ be spoiled. (general possibility)
may
might
could
If you had called, I ___.
would have answered
would answer
Your phone keeps freezing. You ___ need to update it. (less certain)
might
could
may
The restaurant ___ close down soon, I haven't seen many customers here lately. (general possibility)
might
could
may
The weather was so fine that you ___ the French coast nearly 30 miles away.
could have seen
could see
The police think that one of the criminals ___ the other two.
could murder
could have murdered
She ___ have checked her inbox since she never replied. (more certain)
couldn't
may not
might not
There's no one in the parking lot. The store ___ be closed. (more certain)
could
might
may
He ___ to work tomorrow. He's not very sick at all.
could go
could have gone
We're not sure what we'll do this weekend. We ___ go to the beach or we ___ stay home and watch some movies. (less certain)
may
could
might
They ___ time to finish it yesterday.
may not have had
may not have
The symptom ___ a minor infection but we'll need to do a test to confirm that.
may indicate
may have indicated
Isabella ___ there already; she left before we did.
may have been
may be
It's a good thing she raised so much money. Otherwise, she ___ the election.
could lose
could have lost
I haven't seen them, but for what I know, they ___ already.
might arrive
might have arrived
The car ___ break down at any moment. (general possibility)
could
may
might
We really got lucky. The accident ___ a lot of problems.
could have caused
could cause
The company ___ announce its new product next month, but it's not confirmed yet. (more certain)
might
may
could
I ___ go to the party, but I'm not feeling great. (less certain)
may
could
might
*hears a strange noise* "It ___ the wind."
could be
could have been