学习语法和学习语言是相辅相成的，英语水平要提升，语法知识点必须要熟练掌握。基础复习阶段，对于遇到的相关语法一定要弄懂弄会。新东方在线分解各个语法知识点，帮助大家一一攻克。下面是过去完成进行时语法知识点解析：
2019考研英语语法解析：过去完成进行时
had been + 动词的现在分词。
用法：表示一直持续到过去某个时间的行为动作，此行为动作或刚结束、或还没结束(可以从上下文看出)。这一时态经常与一般过去时一起使用。例如：
When he came in, I had been trying to repair the TV for a couple of hours. 他进来的时候，我一直在努力修理电视机好几个小时了
The roads were dangerous. It had been raining for two whole days. 道路很危险。雨一直下了两整天。
They were tired because they had been digging since dawn. 他们累了，因为从天亮开始他们就一直在挖。
The boy was delighted with the new mountain bike. He had been hoping for one for a long time. 那男孩得到一辆新山地自行车很高兴。很长时间来他一直希望有一辆。
考研英语系统复习
划重点、讲难点
你需要这样一个课程
————送给你的话————
Try your best, even if the task seems difficult. 全力以赴，即使任务看起来超有难度。