be的过去式
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be的过去式
be的过去式
be的过去式
are -- were
am/is -- was
was,were
单数 was
复数were
am/is was
are were
过去分词 been
am/is -was are-were
be过去式:复数为were,单数为 was。
be的过去式
be的过去式
be的过去式
are -- were
am/is -- was
was,were
单数 was
复数were
am/is was
are were
过去分词 been
am/is -was are-were
be过去式:复数为were,单数为 was。