作业帮 > 英语 > 作业

现在完成进行时的被动语态结构是have been +过去分词还是have been+doing

来源:学生作业帮 编辑:百度作业网作业帮 分类:英语作业 时间:2024/05/28 23:13:01
现在完成进行时的被动语态结构是have been +过去分词还是have been+doing
例如:They have been collecting some stamps since2000
Some stamps have been collected by them since 2000
现在完成进行时的被动语态结构是have been +过去分词还是have been+doing
主动 have been doing 被动 have been being done
Some stamps have been being collected by them since 2000.
再问: 您好 我问的是现在完成进行时的被动语态结构 而您告诉我的是现在完成是的被动语态
再答: 这就是现在完成进行时 现在完成时是 Some stamps have been collected by them since 2000。你的句子主动是现在完成进行时,被动是现在完成时