一般现在时 do/does am/is are 一般将来时 will do will/shall be done 一般过去时 did was/were done 现在进行时 be doing am/is/are being doing 现在完成时 have/has done have/has been done 过去完成时 had done had been done 过去将来时 would do would be done 过去进行时 be doing was/were being done ……