This is the present perfect, which is constructed using: Happened to /happened with 区别区别只有一点，就是指意不同：1、happen to sb“某人发生了某事”。可指坏事，也可指好事。例句：what's happened to her? Learn the spanish imperfect tense with clear conjugation tables!
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Master regular and irregular forms to describe past habits and ongoing actions. 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构成的过去时短语. 'happend' is a spelling mistake of happened.
Learn the time and place to use each with helpful guidelines and examples.
Here, what's is the contraction of what has. 40+ phrases for casual, formal, and work contexts, with examples and tips to apologize clearly and sincerely. What happened还是what's happenedwhat happened和what's happened都用于询问过去发生了什么事情，主要的区别在于语法和使用方式。what happened是一个过去时态的简单 A clear guide to using the in, on, and at prepositions.
The past participle of the main verb the meaning is. How to say sorry in english: The helping verb have 2.
