happen有发生，出现;遭到;碰巧;等意思，那么你知道happen的过去式是什么吗?今天一起来学习一下happen的过去式以及happen的用法和例句，希望对大家的学习有所帮助!
happen的过去式及其它时态
happen的过去式:happened
happen过去分词:happened
happen现在分词:happening
happen第三人称单数:happens
happen的用法和例句
1、I'm trying to look ahead at what might happen and be ready to handle it.
我打算未雨绸缪，作好应对准备。
2、I know that this would happen, first or last.
我知道这事迟早会发生.
3、It is reasonable to assume that he knew beforehand that this would happen.
有理由认为他事先就知道会发生这样的事。
4、I dread to think what will happen in the case of a major emergency.
我不敢想在重大紧急情况下会发生什么。
5、He slipped off when he saw what was going to happen.
他一看苗头不对就溜了.
6、Just when this will happen is anyone's guess.
谁也说不准这事什么时候会发生。
7、"This tax is a disaster waiting to happen," said an angry Tory backbencher.
“这项税收将为日后埋下祸根，”一位愤怒的保守党后座议员说道。
8、Researchers are pushing back the frontiers and opening doors to reveal why things happen and how things work.
研究者们拓展了其研究领域，介绍并揭示了事物发生的原因和机理。
9、Lucy shut her eyes so she wouldn't see it happen.
露西闭上了眼睛，这样就不会看到它发生了。
10、Nothing will happen for a few years yet.
几年内还不会有什么事发生。
