has +过去分词和has been+过去分词和be +过去分词有什么区别拜托各位大神

来源：学生作业帮编辑：灵鹊做题网作业帮分类：英语作业时间：2024/04/29 06:27:39

一、从结构上区别现在完成时：主语 + have / has + 过去分词（肯定式）主语+ have / has + not + 过去分词（否定式） Have / Has + 主语 + 过去分词（疑问式）过去完成时：主语 + had + 过去分词（肯定式）主语+had + not + 过去分词（否定式） Had + 主语 + 过去分词（疑问式）

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