1、构成一般将来时表示未来动作，shall用于第一人称，will常用于二、三人称，在美国英语，三个人称通常都用will，现在小编就来说说关于should情态动词怎么使用?下面内容希望能帮助到你，我们来一起看看吧!
should情态动词怎么使用
1、构成一般将来时表示未来动作，shall用于第一人称，will常用于二、三人称，在美国英语，三个人称通常都用will
You will catch a cold if you go out without an overcoat in such terrible weather. 天气这么冷，你出去不穿大衣会感冒的。
They will improve as they grow older. 随着年龄的增长，他们会有所改进。
2、构成将来进行时，表示在将来某一时刻或一段时间内正在进行的动作，或按计划将要进行的动作
We shall be going away tomorrow by an early train. 我们将于明天乘早车走。
I'm letting her know that I shan't be going. 我在让她明白我是不会走的。
将来进行时还可以用来表示现在进行的动作
He will still be reading his paper. 他一定还在读报。
3、构成将来完成时，表示到将来某时刻完成的动作
By the end of the year he will have learned enough English to understand what is said to him. 到今年年底，他的英语学得足以能听懂对他讲的话。
4、构成将来完成进行时
At the end of this week I shall have been working in this company for three years. 到本周末，我在该公司工作就满3年了。
5、should和would构成过去将来时、过去将来进行时、过去将来完成时、过去将来完成进行时
I was told that we should check up and repair the machine. 已通知我要检修这台机器。
He told me that he would be working on his doctoral dissertation during May. 他告诉我5月份他将要写他的博士学位论文。
I told her that the work would have been finished by six o'clock. 我告诉她到6点钟这工作就完成了。
Jack said that he would have been studying Chinese for three years by the end of the term.杰克说到本学期末，他学习汉语就满3年了。
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