被動語態(tài)的構成：be+過去分詞
一般現(xiàn)在時 am / is / are +過去分詞
一般過去時 was / were +過去分詞
一般將來時 shall / will + be +過去分詞
過去將來時 should / would + be +過去分詞
現(xiàn)在進行時 am / is / are + being +過去分詞
過去進行時 was / were + being +過去分詞
現(xiàn)在完成時 have / has + been +過去分詞
過去完成時 had been +過去分詞
情態(tài)動詞 情態(tài)動詞+ be +過去分詞
