be有几种形式
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be有几种形式be有几种形式be有几种形式一般现在时:am,is,are一般过去时:was,were完成时:been主格am,宾格is,复数are三种吧如果是时态就多了am,is,aream:Iama
be有几种形式
be有几种形式
be有几种形式
一般现在时:am ,is ,are
一般过去时:was ,were
完成时:been
主格am, 宾格is, 复数are三种吧
如果是时态就多了
am, is, are
am: I am a person.
is: He is right.
are: You are beautiful.
was: I/He/She/It was there that monemt.
were: We were happy.
(have/has/had) been: I have been in Sinapore.
being: Being with you, I feel happy.
am
is
are
been
was
were
一般现在时:am ,is ,are
一般过去时:was ,were
完成时:been
is am are
was were
being
(have/has/had)been