doesn't

aux. 表示否定.（等於does not）

do don't用於第一第二人稱（我，你）和複數（你們，我們，他們等），分別表示肯定和否定

does doesn't用於第三人稱單數（他她它）（does not 的常用口語形式）

doesn't count

第一人稱：I we第二人稱：you（包括你們）第三人稱:除了I we you，其他都是。

第一二人稱用原型，即do don't，第三人稱就要用does doesn't

與 doesn't 相關的例句:

A politician who doesn't understand arts and humor can only bring a desert to people.

一個不懂藝術和幽默的政治家，給人們帶來的只能是沙漠。

Doesn't is the usual spoken form of 'does not'.

We'll never get there if he doesn't speed up.

如果他不快些走，我們一定到不了那裏。

邁克根本不肯讀書，相反地，他終日遊手好閒。

It doesn't take much to stir the students to violence.

不用費多大勁就能把學生鼓動起來進行暴力活動。

Whether the bicycle was blue or red, it doesn't matter to Bill. ^[1] 

自行車的顏色無論是藍色還是紅色，對比爾來説並不重要。

It doesn't mean to insult others but courses offence sometimes.

這並不意味着侮辱對方，但有時可能引起冒犯。