Why didn't you take him?能不能说成Why did you not take him?这两种说法有什么区别?

Why didn't you take him?能不能说成Why did you not take him?这两种说法有什么区别?
Why didn't you take him?
能不能说成Why did you not take him?
这两种说法有什么区别?

Why didn't you take him?能不能说成Why did you not take him?这两种说法有什么区别?
不能
否定句的not要加在助动词或情态动词后面 所以一定要放在did之后

一般不说Why did you not take him， 规范的说法 否定疑问句 Why didn't you take him?

不能说成Why did you not take him?
why要倒装 下面帮你找了些资料。
倒装分两种：配合语法条例的倒装，叫“grammatical inversion”；配合强调语势的叫“emphatic inversion”。
语法上的倒装句是强制性的，包括下列 7 种：
⒈疑问句，如：
● Can you do it?
● How...

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不能说成Why did you not take him?
why要倒装 下面帮你找了些资料。
倒装分两种：配合语法条例的倒装，叫“grammatical inversion”；配合强调语势的叫“emphatic inversion”。
语法上的倒装句是强制性的，包括下列 7 种：
⒈疑问句，如：
● Can you do it?
● How old are you?
● When did you know him?
● Why did you elect him as captain?
● Which of these apples do you prefer?
但疑问代词做主语时，不必倒置，如：
● Who is your English teacher?
● What happened last night?

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不能，二者严重不同！