1
1 could
/ was able to
2 can’t / won’t be able to
3 to be able to
4 couldn’t
5 can
6 Can / Could
7 been able to
8 can’t
9 be able to
10 has been able to
2
1 have
to
2 shouldn’t
3 should
4 mustn’t
5 don’t have to
6 ’ll have to
7 must / should
8 don’t have to
9 must / have to
10 have to
3
1 were
studying, met
2 was getting
3 won
4 had / ’d already finished
5 ordered
6 were winning
7 hadn’t slept
8 had just scored
9 was thinking, rang
10 said
4
1 used
to watch
2 used to be
3 usually goes
4 Did you use to work
5 used to play
6 didn’t use to like
7 usually eats
8 isn’t usually
5
1 must
2 can’t
3 might
4 can’t
5 might
6 must
7 must
8 can’t
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