The helping verb have 2. 'happend' is a spelling mistake of happened. The past participle of the main verb the.
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Happen to 后面跟的是人名、公司、或其他集合名次和代名词what happened to you?it happens to everybody.
表示“某地 (某时)发生了什么事”，常用“sth.+ happen +地点/时间”这一结构来表达，此时主语应是事情。例如： the.
What happened?和what's happening?的区别是什么？ what happen?表示发生了什么，用于询问发生了什么事情，通常用于过去的事件或突发情况。 接下来让我们看下what happen和what happened的用法区别： 1.词性：what happen是用原形动词happen构成的现在时短语，而what happened是用动词happen的过去式happened构成的过去. Here, what's is the contraction of what has. This is the present perfect, which is constructed using:
