英语时态谓语构成（以 learn 为例）主动语态过去 过去将来 现在 将来 所属时间所属动作类型 助动词 主动词 助动词 主动词 助动词 主动词 助动词 主动词一般时 learned would learn learn will/shall learn进行时 was/were learning am/is /are learning will/shall be learning完成时 had learned have/has learned完成进行时 have/has been learning英语时态谓语构成（以 learn 为例）被动语态过去 过去将来 现在 将来 所属时间所属动作类型 助动词 1 助动词 2 主动词 助动词1 助动词2 主动词 助动词 1 助动词 2 主动词 助动词 1 助动词2 主动词一般时 was /were learned would be learned am/is /are learned will/shall be learned进行时 was/were beiing learned am/is /are being learned will/shall be being learned完成时 had been learned have/has been learned完成进行时 have/has been being learned
