shoud和would用法

shoud和would用法
shoud和would的用法或语法,shoud和would应该用在哪里?
怎么用would have done?结构是什么?

would和should 都是情态动词.
should
1.(shall的过去式,表示过去将来)将
We hoped that we should be able to do that.
我们希望我们能这样做.
2.(表示语气较强的假设)万一,竟然
If the car should break down on the way,you would have to walk back.
万一汽车中途抛锚,你就得走回来.
3.(表示可能性、推测、推论或期待)可能,该
She should be here any minute.
她该马上就到.
Dinner should be ready by now.
此刻晚饭应该做好了.
4.(表示义务、责任)应该,应当
You should do as she says.
你应当照她说的去做.
He should work harder.
他应该更加努力.
You should help your mother with the housework.
你应该帮你母亲做家务.
5.(表示委婉、谦逊)可,倒
6.(表示感情、意志等)竟然会;应该
I'm sorry it should be this way.
很遗憾,事情竟会是这个样子.
It's strange that he should be absent.
真奇怪,他竟会缺席.
You shouldn't have told him about it.
你不该把这件事告诉他的.
7.(表示建议、命令、决定等)应该,必须
Crime should be punished.
犯罪应受惩罚.
8.(表示目的)会,可以
He stood away so that we should enter the room first.
他让开一步,让我们先进屋.
9.(表示结果、意愿等)就,该
10.(表示征求同意等)可以,该
Who should I see about my schedule?
关于我的日程该和谁商讨?
would的用法
would是will的过去式,Would you～作为情态动词,表示“可以请你～”
1.would的用法（请记住以下几个句型）
Would you have a cup of tea?
可以请你喝杯茶吗?
1.Would you～和Will you～
这两个句型皆表示客气的请求、劝说……,但Would you～更客气些.
Would you tell me the way to the station?
劳驾,您能告诉我去车站怎样走吗?
（回答同《Will you～》句型）
2.主语+would like to～
表示“想要……”的意思上,与…want to～意思一 样,但用此句型较客气.
I want to ask you a question.
=I'd（I would）like to ask you a question.
我想问你一个问题.
3.Would you like～
表示请求、劝说,是很客气的说法.
Would you like a cup of tea?
您愿意喝杯茶吗?
Would you like to sing a song?
请唱首歌好吗?
最基本的虚拟语气句型:
主句用would/ should/ could/ might +动词原形.
would have done
将做