had been doing是什么时态?

如题所述

had been doing是一种表示过去持续性动作的过去完成进行时态。它强调从过去的某个时间点开始,动作一直持续到过去的某个时间点,并可能仍在进行中。这种时态在表达上有其独特含义:



    它可用于表示一项动作尚未完成,如"He hadn't finished writing the novel"(他还没写完那部小说)。
    它也可用来表达企图或努力,如"He had been diligently studying the proverb's meaning"(他一直在努力理解这个谚语)。
    在某些情况下,未达成预期结果的情况会被表达,如"They had been trying to understand what their enemy had said, but couldn't"(他们一直在努力理解敌人的话,但没有结果)。
    最近的状况或事件也能通过had been doing来描述,例如"He had been in a constant argument with his wife recently"(他最近一直在和妻子争吵)。
    此外,这个时态还可能反映出某种情绪,如通过询问"What was he doing, showing impatience?"(他在做什么,显得不耐烦?)来揣测对方的行为。
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