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i 've been waiting for you for an hour .为什么这个 have been 后面 带

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i 've been waiting for you for an hour .为什么这个 have been 后面 带的是ing
e +ing形式 系表结构 无论be变成哪种时态形式如果后接动词 要不就是过去分词 要不就是现在分词（过去分词表示被动状态,而现在分词表示持续动作或所处的某种偏主动的状态）.
i 've been waiting for you for an hour .为什么这个 have been 后面 带 125.---I’ve been waiting for you for an hour!Where have you i've been here for about half an hour.have you been looking I've Been Waiting For You 歌词 I ____for you for an hour.Where have you been. You’ve come back!I’ve been looking for you for half an hour .You’ve come back!I’ve been looking for you for half an hour I've been waiting for it's _____ time you got here!We've been waiting for an hour! I’ve been waiting for an hour and he still hasn’t turned up. we have been waiting for almost an hour. I have been waiting for you