查字典中考网整理了关于2020年中考英语知识点之过去将来时的构成，希望对同学们有所帮助，仅供参考。
和一般将来时一样，只不过把助动词be变为过去式，把will，shall变为过去式。
I didnt know if he would come.
=I didnt know if he was going to come.
我不知道他是否会来。
She was sixty-six. In three years，she would be sixty-nine.
她66岁了。三年后，她是69岁。
She told us that she would not go with us，if it rained.
她告诉我们，如果下雨，她就不和我们一起去了。
I didnt know how to do it. What would be their ideas？
我不知如何去做，他们会有什么想法呢？
2.过去将来时常可用来表示过去习惯性的动作。此时，不管什么人称，一律用would。
This door wouldnt open.
这扇门老是打不开。
Whenever he had time，he would do some reading.
他一有时间，总是看书。
I would play with him when was a child.
当我还是孩童时，总是和他一起玩。