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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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he is knowledgeable about

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "he is knowledgeable about" is grammatically correct and can be used in written English.
You can use this phrase to indicate that someone has a lot of knowledge or information about a certain topic or subject. It can be used to describe a person's expertise or level of understanding. Example: "John is knowledgeable about history and can speak in depth about different eras and events."

✓ Grammatically correct

News & Media

Academia

Wiki

Human-verified examples from authoritative sources

Exact Expressions

14 human-written examples

He is knowledgeable about jazz.

News & Media

The Economist

Allah will forgive the believers, he is knowledgeable about everything".

News & Media

The New York Times

Though he is knowledgeable about film developing, he has never done that, either.

News & Media

The New York Times

He is knowledgeable about his market, well trained, hard-working and, above all, highly empathetic.

News & Media

The New York Times

DESPITE Mr. Kaiser's background in management, he is knowledgeable about what goes on the stage.

"He is knowledgeable about the subject matter, a great believer in process, a writer about process," he said.

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Human-verified similar examples from authoritative sources

Similar Expressions

46 human-written examples

But investigators also believe he is knowledgeable about--and may have played a role in--the kidnaping and murder of Drug Enforcement Administration agent Enrique S. Camarena two years ago in Guadalajara, Mexico.

News & Media

Los Angeles Times

To encourage shy members to speak up, ask them for input on a subject he or she is knowledgeable about or interested in.[2].

"He's knowledgeable about the game.

News & Media

The New York Times

"He's not only knowledgeable about plants, he's knowledgeable about campus," she says.

Mr. Ahn is sort of the tech guy, by default, and he's knowledgeable about I.T., though not a pro.

News & Media

The New York Times
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Expert writing Tips

Best practice

When describing someone's expertise, be specific about the area of knowledge. Instead of saying "He is knowledgeable about many things", specify "He is knowledgeable about environmental policy and renewable energy sources".

Common error

Avoid using passive constructions that obscure who possesses the knowledge. Instead of "It is known about him that he is knowledgeable about art history", use the active voice: "He is knowledgeable about art history".

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

85%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "he is knowledgeable about" functions as an adjectival phrase, modifying the subject (he) by attributing to him the quality of possessing knowledge in a particular area. Ludwig confirms its grammatical correctness and widespread usage.

Expression frequency: Common

Frequent in

News & Media

66%

Wiki

15%

Academia

9%

Less common in

Science

6%

Formal & Business

4%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "he is knowledgeable about" is a grammatically correct and commonly used way to describe someone's understanding or expertise in a particular subject. Ludwig confirms its validity and versatility. Its neutral register makes it suitable for a wide range of contexts, from news articles and academic papers to everyday conversations. The phrase is most frequently found in News & Media and Wiki sources, indicating its broad appeal. When using the phrase, it's best to specify the area of expertise and avoid passive voice constructions for clarity and impact.

FAQs

How can I rephrase "he is knowledgeable about" to sound more formal?

For a more formal tone, consider alternatives such as "he is well-versed in" or "he possesses expertise in".

What's a simpler way to say "he is knowledgeable about"?

You can use simpler options like "he is familiar with" or "he is informed about" for everyday conversation.

How does "he is knowledgeable about" differ from "he is an expert on"?

"He is knowledgeable about" implies a broad understanding, while "he is an expert on" suggests a higher level of specialized skill and authority.

Is it correct to say "he is knowledgeable on" instead of "he is knowledgeable about"?

While understandable, "he is knowledgeable about" is the more standard and widely accepted phrasing. "He is knowledgeable on" is less common and may sound awkward to some native English speakers.

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Source & Trust

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Authority and reliability

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Expert rating

Real-world application tested

Most frequent sentences: