have been study 为什么不说have studied ,have been absent 为什么不说have absented1 have been study 和 have been absent最常见到,既然不是被动语态（主语是人）,为什么不直接用have + 动词过去分词的形式呢?2 have

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havebeenstudy为什么不说havestudied,havebeenabsent为什么不说haveabsented1havebeenstudy和havebeenabsent最常见到,既然不是被

have been study 为什么不说have studied ,have been absent 为什么不说have absented1 have been study 和 have been absent最常见到,既然不是被动语态（主语是人）,为什么不直接用have + 动词过去分词的形式呢?2 have
have been study 为什么不说have studied ,have been absent 为什么不说have absented
1 have been study 和 have been absent最常见到,既然不是被动语态（主语是人）,为什么不直接用have + 动词过去分词的形式呢?
2 have absented 我也看到过不知道和have been absent 有什么区别（study和absebt在这都不做动词用了这我知道,我就是不知道为什么要这么用,是习惯用法吗?）
3 另外 how long has she been study与 how long has she been studying只有语境上去区别对吧,意思都是一样的,用studying强调还会继续学习下去,但是study在这也暗示会继续学习下去吧.

have been study 为什么不说have studied ,have been absent 为什么不说have absented1 have been study 和 have been absent最常见到,既然不是被动语态（主语是人）,为什么不直接用have + 动词过去分词的形式呢?2 have
1. have been study 是不存在的形式,你打错了吗?只会是have been studying(现在完成进行时)或者have studied(现在完成时)
2.have been absent(现在完成时)absent在这里是形容词,不可以用作过去分词.
3. How long has she been studying?是现在完成进行时,表示从过去开始的动作一直持续到现在,而且此刻动作仍在进行中或继续进行下去.

have been study 为什么不说have studied ,have been absent 为什么不说have absented1 have been study 和 have been absent最常见到,既然不是被动语态（主语是人）,为什么不直接用have + 动词过去分词的形式呢?2 have I'll study IT-just which I have been dream about为什么把which改为what? have been的时态.I've been (studying) English for 3years.为什么用studying而不是to study I have been studying English和I have been learning English意思一样不这其中learn和study能互换吗 They have never been opened.为什么不可以是They never have been opened. The Smiths (have been living) here for ten years 为什么不能用 have been lived l have been divorced 句中为什么要加been,have divorced不行吗?求解 have been done为什么只做状语不作定语 have been there.there前为什么不加to i have been for a long time中,have 为什么不用had?been不代表已经结束了么? We__fine weather for the past few day.A.have been had B.have been having.而A为什么不可以 i have know him since i have been here.为什么不成立 I have been meeting a lot of people that way为什么不直接I have met All __ done now.为什么要填has 而不填have been和have? where have you been?we have been looking for you everywhere.i(worked out)a teaching plan in my office.为什么这里不填have been working out.had been working out; had been work out there have been great changes为什么用have been have been doing 为什么还有 have been deadj 35.He devoted much of his time to ___ English.A.studying B.have been studied C.being studied D.study怎么选?为什么?