be+过去分词与have/has+过去分词的区别

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/10 09:21:22

be+过去分词与have/has+过去分词的区别
be+过去分词与have/has+been+过去分词的区别呢

e+过去分词为所有BE动词的
The window was opened recentely..
窗户刚才被打开了
不需要表明动作的发出者,只有承受者的时候就用被动与态.
注意时态不同,BE也不同.
have/has+been+过去分词为现在完成式的被动语态
The window has been opened for an hour.
前窗户被打开一小时了.
动作承受者为单数用has,复数用have

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