中考网整理了2020年中考英语要点之过去完成式的形式，期望对同学们有所帮助，仅供参考。过去完成式的形式如下：had + past participle过去完成式是不可以单独用的。大家用的时候，需要有另一个事件。也就是说，倘若大家有两件事 A 和 B，两件事都发生在过去，但 A 发生在 B 以前，A 应该用过去完成式，B 则用过去式。以下是几个例子：（1） 他到台湾以前，曾学过中文。He had studied Chinese before he came to Taiwan.（2） 他念大学以前，曾前工作过。He had worked before he decided to go to college.（3） 我写这篇有关爱尔兰的小说以前，曾去过爱尔兰。I had been to Ireland before I wrote this book about Irelands people.（4） 我在上大学以前，已经学过微积分。I had studied calculus before I got into college.（5） 周一以前，已经下过雪了。It had already snowed before Monday.假如大家要强调较早发生事件的连续性，大家可以用过去完成进行式。占去完成进行式和目前进行式惟一不一样的地方是 verb to have 的地方必须要用had 。以下是一些过去完成进行式的例子：1. I had been watching TV before you called me.2. I had been working hard in a company for many years before I went to college.3. He had been studying before he went to class.4. He had been driving all day before he went to sleep.
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