8种时态 .一般现在时: 主语+do/does(现在分词) e.g We clean the room every day. 2.一般过去时: 主语+did e.g We cleaned the room just now. 3.现在进行时: 主语+am/is/are doing e.g We are cleaning the room now. 4.过去进行时: was/were doing e.g We were cheaning the room at 5:00 yesterday afternoon. e.g 5.现在完成时: have/has done We have cleaned the room already. 6.过去完成时: had done e.g We had cleaned the room before he arrived. 7.一般将来时: will do/ e.g We will clean the room tomorrow. 8.过去将来时: was/were to /would do e.g He said he would clean the room next.