Why not和 Why don't的区别主要句型意思用法

Question

如题所述

Answer 1

Why not和Why don't都表达一种询问的口气,提建议的语气
Why not+do something，Why don't+人称+do something
例句：
Why not write it down 为什么不把它写下来呢?
Why don't you write it down 你为什么不把它写下来呢?

Answer 2

这二者意思相同 有时也可以互换 只是第一种是表示建议，提议 why not do sth
第二种也是提议，建议的意思 只是多了应该接受建议的人或事物 why don't sb do sth
why not eat breakfast？

why don't you eat breakfast？

Answer 3

Why not和Why don't都可以引导疑问句，表示一种建议的意味，它们的区别如下：
一、Why not引导一个疑问句，在这种疑问句中，Why not后面直接跟不带to的动词不定式形式，表示某种建议，如：
Why not do it right now?
Why not try again?
Why not have tea?
Why not have a cup of coffee?
二、Why don't也可以引导一个疑问句，但在Why don't的后面，需要加主语，主语之后再加动词原形，也表示某种建议，如：
Why don't you do it right now?
Why don't you try again?
Why don't you have tea?
Why don't you have a cup of coffee?