I do not want to be a teacher.为什么不能写成I not want t

Question

I do not want to be a teacher.为什么不能写成I not want to be a teacher.

Answer 1

这是英语语言的习惯，这是约定成俗的表达
要否定含行为动词的谓语，必须借助于助动词do或does

Answer 2

这里需要助动词do和not连用的，望采纳

Answer 3

行为动词 want 作句中谓语，否定时要用助动词 do ＋not追答

陈述句：I want to be a teacher.
否定句：I don't want to be a teacher.

Answer 4

那个want 是实义动词 必须要借助don't或者是doesn't 或者是didn't来否定

Answer 5

这句话涉及到be动词、一般动词的现在时的否定式问题。want是一般动词，不可以在后面加上否定字not，要借助助动词。
一、be动词的现在时否定。
be动词的现在时的否定式，只要在be动词后面加上否定字not即可，如：
He is not a good baseball player.
She isn't my boyfriend.
You aren't my sons.
二、一般动词现在时的否定。
一般动词现在时的否定式，不可以在一般动词后面加上否定字not，需要用助动词do或does，does用在主语为第三人称单数时，而在助动词do、does后面的动词一定要用原形。
Samuel doesn't have dinner at that restaurant.
He doesn't come from New England.
The twin brothers don't go to school by bus.