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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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not a clue

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "not a clue" is correct and usable in written English.
It is an idiom and is often used in informal contexts to indicate that one has no idea about something. For example: "What did he say? I have no idea… not a clue."

✓ Grammatically correct

News & Media

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

At that, people in the crowd began chanting, "NOT A CLUE! NOT A CLUE!" "We do not scare easily... we never break," Biden said.

News & Media

The New Yorker

Absolutely not a clue.

News & Media

The New Yorker

Not a clue.

Not a clue," he said.

News & Media

Independent

I have not a clue.

News & Media

The New York Times

ALBRECHT: Not a clue.

Really, not a clue.

No, not a clue.

News & Media

The Guardian

No way, not a clue.

"No, I can't remember... not a clue".

News & Media

Independent

Not a clue," Wendy Sherman said.

News & Media

The New Yorker
Show more...

Expert writing Tips

Best practice

Use "not a clue" to express a complete lack of understanding or knowledge in informal settings.

Common error

Avoid using "not a clue" in formal writing or professional communication; opt for more appropriate phrases like "I have no information" or "I am unaware".

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

91%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "not a clue" functions as an idiomatic expression to indicate a complete lack of knowledge or understanding. As Ludwig AI confirms, it's a common way to express ignorance or uncertainty about something.

Expression frequency: Very common

Frequent in

News & Media

100%

Less common in

Science

0%

Formal & Business

0%

Ludwig's WRAP-UP

The phrase "not a clue" is a common idiomatic expression used to convey a complete lack of knowledge or understanding. As Ludwig AI indicates, this phrase is grammatically correct and frequently appears in informal contexts. While highly prevalent in News & Media sources, it's advisable to avoid using it in formal or professional communications. Related phrases like "no idea" or "haven't the faintest idea" can serve as alternatives, depending on the desired level of formality. Overall, "not a clue" is a useful and widely recognized phrase for expressing ignorance or uncertainty in casual settings.

FAQs

How can I use "not a clue" in a sentence?

You can use "not a clue" to express that you don't know something. For example, "I have "no idea" what he's talking about; I haven't a clue!"

What's a more formal alternative to "not a clue"?

In formal contexts, consider using phrases like "I am unaware", "I have no information", or "I am uncertain" instead of the more informal "not a clue".

Is "not a clue" grammatically correct?

Yes, "not a clue" is grammatically correct as an idiomatic expression. It is commonly used in spoken and informal written English.

Which is correct, "not a clue" or "not have a clue"?

"Not a clue" is a shortened, idiomatic version of "not "have a clue"". Both are acceptable, but "not a clue" is more concise and informal.

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Source & Trust

91%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: