has been doing have been done区别
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has been doing是现在完成进行时,强调的是动作从过去某一时间开始,一直延续到现在,并且很有可能还要继续下去,或者表示在说话时刻之前到现在正在进行的动作。
举个例子:I have been learning English since three years ago。我从3年前就开始学英语了
have been done是现在进行时的被动形式,表示某个事物已经被怎么样了,
举个例子:the desk has been broken。桌子早被弄坏了,
希望能帮到你
举个例子:I have been learning English since three years ago。我从3年前就开始学英语了
have been done是现在进行时的被动形式,表示某个事物已经被怎么样了,
举个例子:the desk has been broken。桌子早被弄坏了,
希望能帮到你
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