现在时BE动词是AM IS ARE过去时BE动词是WAS WERE 就是一个结构动词一样的 就是有它才完整的有时候有意思 如,HE IS MY SON. IS 是BE 动词 意思是“是”被动语态中BE DONE(什么被怎样了)如 THE CAR WAS REPAIRED(车被...