“情态动词+BE+过去分词”和“情态动词+HAVE BEEN+过去分词”有什么区别的

2024-12-13 09:58:50
推荐回答(1个)
回答1:

情态动词+BE+过去分词

情态动词+HAVE
BEEN+过去分词
我来解释下
第一个是情态动词的被动语态
eg
This
work
can
be
finished
by
myself.
第二个是表示对过去的肯定推测的被动语态,其本质还是
must
have
done
,只是done是被动语态而已,
eg
The
chair
must
have
been
moved.
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