none that I know

USAGE SUMMARY

The phrase "none that I know" is correct and can be used in written English.
You can use it when you want to express that you don't know of something, or don't know someone. For example: "Are there any vegan restaurants in this area?" "None that I know."

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

25 human-written examples

Theme song: "Once upon a Dream" None that I know of.

HuffPost

"None that I know of," he replied.

The New York Times

A: None that I know of.

The Washington Post

"None that I know of," Alexander says.

The Guardian

Syrians are incredibly proud of their country and none that I know wanted to leave.

The Guardian

There's no real gang in Sydney, at least none that I know of.

The Guardian - Books

Human-verified similar examples from authoritative sources

Similar Expressions

35 human-written examples

Books on this subject would fill a small library, but none before that I know have offered such brilliantly well-lighted and esthetically pleasing photos of the artificial creatures.

The New York Times - Books

None that I knew about, I told her.

The New York Times - Magazine

Venturing outside the town requires parental help, and there are no youth clubs (well, none that I knew of).

The Guardian - Opinion

There was an amazing line-up of musicians and performers, none that I knew but most of which I enjoyed, like Lucent Dossier -- which was an incredible group of dancers, musicians, and aerialists.

Huffington Post

Early on, I thought about studying computer animation, but in the early 1990s there were no dedicated university courses--none that I knew of anyway.

Science Magazine

Expert writing Tips

Best practice

Use "none that I know" to express uncertainty or a lack of specific knowledge on a topic. It's suitable when you suspect information might exist, but you personally aren't aware of it.

Common error

Avoid using "none that I know" when you have definitive proof or strong evidence to the contrary. It's best suited for situations where genuine uncertainty exists, not when you're being evasive or downplaying known facts.

Linguistic Context

The phrase "none that I know" functions as a qualifier expressing a lack of specific knowledge or awareness. It's used to indicate that the speaker isn't aware of something, without definitively stating it doesn't exist. Ludwig confirms its validity in various contexts.

Expression frequency: Common

Frequent in

News & Media

56%

Academia

20%

Science

12%

Less common in

Formal & Business

4%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, "none that I know" is a grammatically correct and common phrase used to express a lack of specific knowledge or awareness. As Ludwig AI confirms, the phrase is valid and appears frequently in news, academic, and scientific contexts. While its register is generally neutral, you might consider more formal alternatives like "not to my knowledge" in professional settings. When using this phrase, be mindful of overstating certainty and ensure it aligns with genuine uncertainty.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

not that I'm aware of

Emphasizes a lack of awareness rather than absolute knowledge.

to the best of my knowledge, no

Adds a qualifier about the extent of one's knowledge.

as far as I can tell, none

Indicates a conclusion based on available information.

not to my understanding

Focuses on a lack of comprehension or information received.

I haven't heard of any

Highlights the absence of prior information.

there are none that I'm familiar with

Emphasizes unfamiliarity with the subject.

I'm not privy to any

Suggests a lack of access to confidential information.

I have no knowledge of that

Directly states a lack of information about something.

I'm unaware of any

Simply expresses a lack of awareness.

no idea on my end

Informal way of saying there is no knowledge about the matter.

FAQs

How can I use "none that I know" in a sentence?

You can use "none that I know" to express a lack of knowledge about something. For example, "Are there any direct flights to Hawaii from here?" "None that I know".

What's a more formal way to say "none that I know"?

For a more formal tone, you could say "not to my knowledge" or "to the best of my understanding, no". These alternatives offer a similar meaning while sounding more professional.

Is it appropriate to use "none that I know" in professional writing?

While grammatically correct, "none that I know" might be considered informal for some professional contexts. Consider using more formal alternatives like "not to my knowledge" or "I am not aware of any" in formal documents.

What's the difference between "not that I know" and "none that I know"?

The phrases "not that I know" and "none that I know" are very similar in meaning and usage. Both express a lack of knowledge or awareness, but "none that I know" can sometimes imply a stronger sense of certainty that such a thing does not exist, while "not that I know" is a slightly more cautious expression.