1、四级语法讲义一:时态:所谓的"时态",就是时间+状态。谓语动词的时态见下表:1.主动形式过去现在将来过去将来一般diddowill/shalldo
should/woulddo
进行was/weredoingam/is/aredoingwill/shallbedoing/完成haddonehave/hasdonewill/shallhavedoneshould/wouldhavedone用于虚拟语气完成进行hadbeendoinghave/hasbeendoing//2.被动形式过去现在将来过去将来一般was/weregiven
am