北师大版初一年级上册英语语法 1.现在进行时:主语+am/is/are doing We are cleaning the room now.现在进行时：am(not)/is(nt)/are(nt)+V.ing2.过去进行时:was/were doing .We were cheaning the room at 5:00 yesterday afternoon.过去进行时：was(nt)/were(nt)+V.ing3.一般现在时:主语+do/does(现在分词) We clean the room every day.一般现在时：do(nt)/does(nt)4.一般过去时:主语+did We cleaned the room just now.一般过去式：did(nt)+V.原5.现在完成时: have/has done We have cleaned the room already.现在完成时：have(nt)/has(nt)+过去分词(p.p.)6.过去完成时: ha
