基本时态构成 时态语态 主动 被动 1 一般现在时 V/do/does Is/am/are done 2 现在进行时 Be doing Is/am/are being done 3 现在完成时 Have/has done Have/has been done 4 一般过去时 Ved Was/were done 5 过去完成时 Had done Had been done 6 过去进行时 Was/were doing Was/were being done 7 一般将来时 Will/shall do Will/shall be done The Past Perfect Tense 过去完成时态1.现在完成时态表示过去发生的动作对现在造成的影响或 结果 Our teacher has left. We have studied English. I have already finished the homework. He has had his lunch. He has become a doctor. have/has+ 过去分词2.某个动作从过去已经开始,一直持续到现在,还有可