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who; they whom ; who whom; they they; who
two thousands one thousand of thousands of two thousands of
has taught to have taught having taught to be teaching
has been to; will come back has gone to; will be back has been in; would come back has gone to; won’t come back
two-thirds; has two-third; have two-thirds; have second-three; have
can’t have; smoked may have; smoked should have; has smoked should have; didn’t smoke
alone, has died lonely, has been died lonely, has been dead alone, has been died
Do; and Do; or Does; or Does; and
To encourage Encouraged Having encouraged Encourage
How many How much How often How far
can’t have; smoked may have; smoked should have; has smoked should have; didn’t smoke
has been cost have cost has cost have been cost
have; is being taken have; has taken has; is taken has; have been taken
So he does So does he So he has So has he
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