专题四动词的时态和语态一般现在时一般过去时一般将来时过去将来时现在进行时主动do/doesdidwill/shalldowould/shoulddoam/is/aredoing被动am/is/aredonewas/weredonewill/shallbedwould/shouldbam/is/arebeingoneedonedone现在完成进行过去进行时将来进行时现在完成时过去完成时时主动was/weredoingwill/shallbedoinghave/hasdonehave/hasbeendoinghaddone被动was/werebeingdone----------have/hasbeendone----------hadbeendo...
