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 since2000Some stamps have been collected by them since 2000

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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 since2000Some 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
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例如:They have been collecting some stamps since2000Some stamps have been collected by them since 2000
主动 have been doing 被动 have been being done
Some stamps have been being collected by them since 2000.

现在完成时和现在完成进行时的被动语态结构? 现在完成进行时的被动语态是怎样的? have been done 什么东西?have been doing是现在完成进行时的被动语态嘛? 将来过去完成进行时的被动语态结构 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 since2000Some stamps have been collected by them since 2000 现在完成进行时的主动和被动语态都是have been doing吗? 现在完成进行时的被动语态 的格式是什么 求一般将来时和现在进行时的被动语态结构 现在完成进行时的被动语态的谓语动词形式是怎样的? 一般现在、一般过去、一般将来、现在完成时态、现在进行时态的被动语态结构是什么?一般现在、一般过去、一般将来、现在完成时态、现在进行时态的被动语态结构是什么?(只写结构,被 请帮忙提供三种被动语态句子结构英语语法书上说将来进行时和现在完成进行时没有被动语态,不知道将来完成进行时、过去完成进行时、过去将来完成进行时有没有被动语态?这三种的句子 现在进行时的被动语态 英语现在进行时的被动语态跟完成时态的进行时怎么表示. 求一般现在时、一般过去时、现在进行时、过去进行时、现在完成时、过去完成时、一般将来时的被动语态结构 将来进行时和现在完成进行时的主动被动语态形式一样么? 现在完成进行时变被动语态的问题We have been discussing the problem all the evening.怎么变被动? 现在完成进行时是否有被动语态 现在完成进行时和被动语态区别