It could be ... It must be ... It can't be ... etc.
A: Billy isn't answering his phone. B: The battery ______ _____ died. It's also possible that he's too busy to answer.
might have / may have / could have
This letter _____ be from Aunt Caroline, it's written in her handwriting.
must
If we don't buy train tickets before getting on the train, we _____ get into trouble. (= it's possible)
may / might
The cake was eaten during the night but everyone was asleep upstairs except the dog. Make a deduction about what happened to the cake.
The dog must've eaten it. The people can't have eaten it because they were asleep upstairs.
Where are they? They _____ _____ _______ hours ago. ARRIVE (= past expectation)
should have arrived
You ______ have any trouble finding the hotel - it's on the main road, it's huge and brightly coloured, and has a huge sign out front. You _____ miss it!
shouldn't (= expecation) / can't (not possible)
Which modal(s) do we use to talk about possibility?
may (not), might (not), could (not)
What modal(s) do we use to show ability?
can, be able to
If we sell our current house, we'll _________ buy a new one.
be able to
Eleanor _____ speak 3 languages.
can / is able to
I think we should get some more boxes. We ______ not have enough for all of our belongings. (=it's possible)
may / might
Make a deduction about what this is.
It could be ... It must be ... It can't be ... etc.
Make a deduction about what this is.
It could be ... It must be ... It can't be ... etc.
We _____ buy more food. The children _____ be hungry when they come home from their hike.
should (advice, recommendation) / might/could/may (possibility in the future)
Those girls look similar. They _____ be sisters, or perhaps they're cousins.
might/may/could
I'm really sorry but I _____ stay for lunch - how ______ we reschedule for next week?
can't (ability) / about (suggestion)
This coat _____ be Jason's, it's too small.
can't
Oh no, I _____ find my phone. I ______ have left it at home.
can't (ability) / must (deduction)
When we are sure that something is true, which modal(s) do we use?
must (= sure something is true), can't/couldn't (sure something is not true)
You _____ try calling Alex to see where he is. But he _____ answer if he's busy.
could (suggestion) / might not (possibility, possibly not true)
A: I wonder why they are late. B: They _____ have stopped art a service station to go to the toilet or get something to eat instead of driving straight here, (= it's possible)
may / might
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