When you want to use a verb as the predicate of a sentence, you have to choose an ending from one of two sets:
from a set of
past tense
endings (to express past time)
from a set of
non-past
endings (to express present or future time)
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© 1981,1982,1991 by R.L.Leed, A.D.Nakhimovsky, A.S.Nakhimovsky
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