是will的过去式，可用于各人称，表示过去时间的"意志"、"愿望"和 "决心"等。如：
He declared that he would do everything to help us. 他说要尽一切可能来帮助我们。
I told peter that I would go along wit him.我告诉彼得我要跟他一块去。
All in e doctors and nurses told Dr. Bethune not to give his own blood to the wounded, but he wouldn't listen.
和护士劝白求恩大夫不要把自己的血输给伤员，但是他不听。
would用来表示现在时间时
这时would不论是表达说话人本身的意志或向对方提出请求，均较will婉转。如：
Would you tell us something about yourself? 请跟我们谈谈你自己好吗?
Would you like to have a glass of wine? 你要喝杯酒吗?
Would you please tell me the way to the nearest bus-stop? 请告诉我去最近的公共汽车站怎么走好吗?
Would you mind helping me with my packing? 请你帮我打打行李好吗?
[注]在日常会话中，I would like to和I should like to都可以说，I would like的简略式为I'd like。如：
I should (would) like to have a look at the new television set.我想看看这架新电视机。
I'd like to borrow a copy of Alice in Wonderland.我要借一本《爱丽丝漫游奇境记》。
Would还可以表示过去习惯发生的动作
I found that retired persons would often go to the park to play chess.我发现退休的人经常到公园里下棋。
When he had a problem to solve，he would work at it until he found an answer.当他有个问题要解决时，他总是想办法一直到找到答案为止。