英语的过去式有哪些

如题所述

第1个回答  2019-09-13
.一般过去时
概念:过去某个时间里发生的动作或状态;过去习惯性、经常性的动作、行为。
2.时间状语:ago,
yesterday,
the
day
before
yesterday,
last
week(year,
night,
month…),
in
1989,
just
now,
at
the
age
of
5,
one
day,
long
long
ago,
once
upon
a
time,
etc.
3.基本结构:be动词;行为动词
4.否定形式:was/were+not;在行为动词前加didn't,同时还原行为动词。
5.一般疑问句:was或were放于句首;用助动词do的过去式did
提问,同时还原行为动词。
6.例句:she
often
came
to
help
us
in
those
days.
i
didn't
know
you
were
so
busy.
过去完成时:
1.概念:以过去某个时间为标准,在此以前发生的动作或行为,或在过去某动作之前完成的行为,即“过去的过去”。
2.时间状语:before,
by
the
end
of
last
year(term,
month…),etc.
3.基本结构:had
+
done.
4.否定形式:had
+
not
+
done.
5.一般疑问句:had放于句首。
6.例句:as
soon
as
we
got
to
the
station,
the
train
had
left.
by
the
end
of
last
month.
we
had
reviewed
four
books
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