was和were后面加动词的什么形式
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答:它们是be动词的过去式
一、作助动词:
1. 现在分词,构成过去进行时态:
he
was
reading.
2.
过去分词,构成被动语态:
they
were
defeated.
二、作系动词
3. 现在分词、动名词短语作表语:
the
film
was
moving.
his
job
was
teaching
english
.
4. 过去分词作表语:
we
were
moved.
5.
不定式作表语:
1)有to不定式:his
work
that
day
was
to
clean
the
blackboard.
2)
无to
不定式:what
he
should
do
is
clean
the
blackboard.
一、作助动词:
1. 现在分词,构成过去进行时态:
he
was
reading.
2.
过去分词,构成被动语态:
they
were
defeated.
二、作系动词
3. 现在分词、动名词短语作表语:
the
film
was
moving.
his
job
was
teaching
english
.
4. 过去分词作表语:
we
were
moved.
5.
不定式作表语:
1)有to不定式:his
work
that
day
was
to
clean
the
blackboard.
2)
无to
不定式:what
he
should
do
is
clean
the
blackboard.
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