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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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does not know from

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "does not know from" is correct and usable in written English.
It is typically used to indicate a lack of knowledge or understanding about a particular subject or situation. Example: "She does not know from where the rumors originated, but she is concerned about their impact."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

9 human-written examples

Due to the HMAC security, any shop c, not knowing key k, cannot determine which products belongs to the sets ({mathtt{MP}}_{c}) (i.e, any shop does not know, from ({mathtt{MP}}_{c}), which products is selling at the minimum price).

Rex Ryan does not know from personal.

News & Media

The New York Times

It looks like a crystal ball, but the Weber Lunette Light does not know from tarot.

He told his mother he had an economics degree, though she does not know from what institution.

News & Media

The New York Times

Aisha, 32, from Eritrea, does not know from day to day where she will sleep and often spends the night on the street.

News & Media

The Guardian

In East Germany today, there is not a single person who does not know – from West German television, from friends or, obliquely, from the vituperative reports in the East German Press – of the dramatic departure of so many countrymen, across the border from Hungary into Austria, and from there into West Germany.

News & Media

Independent
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Human-verified similar examples from authoritative sources

Similar Expressions

50 human-written examples

But Frank, it turns out, doesn't know from straight.

News & Media

The New Yorker

ROBERT G. MORVILLO doesn't know from cooking or gardening.

News & Media

The New York Times

It doesn't know from deadlines and BlackBerries, from Twittering and overnight delivery.

"You say, 'You can't get it done,' Iris doesn't know from 'can't' and she doesn't know from 'no.' I've often told her, 'No, that's not the way,' but then she surprises me.

News & Media

The New York Times

The woman doesn't know from burden.

News & Media

Huffington Post
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Expert writing Tips

Best practice

When using the phrase "does not know from", ensure the context clearly indicates what specific subject or area the lack of knowledge pertains to. This avoids ambiguity and ensures clear communication.

Common error

Avoid using "does not know from" in highly formal or technical writing where a more direct and literal expression of lacking knowledge would be more appropriate. For example, in academic papers, use "is unaware of" or "lacks knowledge of" instead.

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 "does not know from" functions as a verbal phrase indicating a lack of knowledge or familiarity with a particular subject or concept. It suggests that the person lacks understanding or experience in the specified area, as seen in examples provided by Ludwig.

Expression frequency: Uncommon

Frequent in

News & Media

67%

Science

33%

Formal & Business

0%

Less common in

Academia

0%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

The phrase "does not know from" is a grammatically sound and usable idiom in English, typically employed to express a lack of knowledge or familiarity with a particular subject or situation. Ludwig confirms its correctness and provides examples spanning various contexts, including News & Media and Science. While it's more suited for neutral to informal settings, it is advisable to opt for more formal alternatives like "is unaware of" or "lacks knowledge of" in academic or highly professional environments. Be mindful of the intended audience and the degree of formality required when employing this phrase.

FAQs

How can I use "does not know from" in a sentence?

You can use "does not know from" to indicate a lack of familiarity or understanding. For example, "He "does not know from" classical music" means he is not familiar with classical music.

What are some alternatives to "does not know from"?

Alternatives include "is unaware of", "is unfamiliar with", or "has no idea about". For instance, instead of saying "She "does not know from" accounting", you could say "She is unfamiliar with accounting".

Is it grammatically correct to use "does not know from"?

Yes, "does not know from" is grammatically correct, but it's an idiom, which means it's best used in informal or neutral contexts. In very formal writing, consider more direct alternatives.

What's the difference between "is unaware of" and "does not know from"?

"Is unaware of" is a more formal and direct way of expressing a lack of knowledge. "Does not know from" is more idiomatic and can imply a general unfamiliarity with a subject, not just a specific piece of information. For example, "He is unaware of the new policy" versus "He "does not know from" corporate jargon".

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Source & Trust

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Real-world application tested

Most frequent sentences: