Don't know 对比 Have no idea

在英语中何时使用每一个，包含含义、语域和例句。

Don't know

常见习语

Have no idea

非正式 前 2000（常见）

最正式: Don't know 最常见: Have no idea

	Don't know	Have no idea
发音	🇬🇧 //dəʊnt nəʊ// 🇺🇸 //doʊnt noʊ//	🇬🇧 //hæv nō aɪˈdɪə// 🇺🇸 //hæv noʊ aɪˈdiə//
含义	对某事没有信息。 To not have information about something.	根本不知道某事 Not know something at all
例句	I really don't know what to say.	I have no idea where my keys went.
语域	中性	非正式
常见程度	常见习语	前 2000（常见）
搭配	don't know anything, don't know why, don't know the answer, don't know what to do, don't know much	have no idea about, have no idea how, have no idea where
常见错误	Using 'don't know' in passive voice., Confusing with 'not know'., Omitting the subject before 'don't know' in sentences.	Confused with 'have an idea' - means the opposite., Used too formally - mostly informal., Omitting 'no' - 'have idea' is incorrect.
用法说明	在非正式对话中使用，当你想要表达不确定或缺乏信息时。避免在正式写作中使用。 Use in informal conversations when you want to express uncertainty or lack of information. Avoid in formal writing.	主要用于随意的对话中，不太适合正式的写作或演讲。 Used mainly in casual conversations. It may not be suitable for formal writing or speech.

在真实片段中看它

I don't know, he never told me.

Sherlock › S1 E1

I don't know, get a flatshare or something?

I don't know.

I don't know, he never told me.

Sherlock › S1 E1

I don't know, get a flatshare or something?

Don't know

Agent Carter › S1 E1

Darling, you have no idea.

Have no idea

常见问题：Don't know 对比 Have no idea

Don't know和Have no idea 有什么区别？

Don't know: To not have information about something. Have no idea: Not know something at all

哪个更正式：Don't know和Have no idea？

Don't know 是其中最正式的。

哪个更常见：Don't know和Have no idea？

Have no idea 在日常英语中最常见。

能各给一个例子吗？

Don't know: I really don't know what to say. Have no idea: I have no idea where my keys went.

我可以互换使用 Don't know和Have no idea 吗？

不总是。Don't know和Have no idea 相关，有时可以互换，但在语域、常见程度和用法上不同，所以换用可能改变意思或语气。替换前先看看上面的区别。