Used and loved by millions

Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

MitStanfordHarvardAustralian Nationa UniversityNanyangOxford

he has extensive knowledge

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "he has extensive knowledge" is correct and usable in written English.
You can use it to describe someone who possesses a deep understanding or a wide range of information about a particular subject or field. Example: "As a historian, he has extensive knowledge of ancient civilizations, which greatly enriches his lectures."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

3 human-written examples

"He has extensive knowledge of our global food categories, our customers and our worldwide operations".

News & Media

The New York Times

Lawyers and lobbyists said he could easily earn five times that in the private sector because he has extensive knowledge of the Medicare program and can offer clients access to senior administration officials.

News & Media

The New York Times

He has extensive knowledge and expertise in secondary markets and financial retail operations.

News & Media

Huffington Post

Human-verified similar examples from authoritative sources

Similar Expressions

53 human-written examples

He had extensive knowledge and distinguished ability in his boyhood.

News & Media

The New York Times

Gale said this current round was about getting Sequoia on board — and Dixon, who has extensive knowledge in the health care industry, he said.

News & Media

TechCrunch

Chana has extensive knowledge on the benefits of healthy working and applying this to the workplace.

News & Media

The Guardian

Paul has extensive knowledge about the world and the international economy.

News & Media

The New York Times

Rachel has worked in education for 25 years and has extensive knowledge of curriculum matters across the primary age range.

News & Media

The Guardian

From the home teams, JLT-Condor's Russell Downing has extensive knowledge of his local roads, and the cricketer Matt Prior's OnePRO squad field last year's 10th finisher Richard Handley.

They say: "The VBIED described in this report is possible only if the VBIED constructor has extensive knowledge of explosives and the chemical applications of explosives.

News & Media

The Guardian

"So here are fundamentally good soldiers military-intelligence guysoldiers military-intelligencely," the former official, who has extensive knowledguys beingspecial-access programs, added.

News & Media

The New Yorker
Show more...

Expert writing Tips

Best practice

When describing someone's knowledge, be specific about the area or subject in which they possess "extensive knowledge" to provide context and clarity.

Common error

Avoid using "he has extensive knowledge" if you cannot provide examples or evidence to support the claim. Overstating someone's expertise can damage your credibility.

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 has extensive knowledge" functions as a declarative statement expressing that an individual possesses a significant amount of information and understanding on a given subject. Ludwig AI confirms the phrase is grammatically correct and usable.

Expression frequency: Common

Frequent in

News & Media

60%

Science

20%

Formal & Business

10%

Less common in

Wiki

5%

Encyclopedias

3%

Academia

2%

Ludwig's WRAP-UP

In summary, the phrase "he has extensive knowledge" is a grammatically sound and frequently used expression to denote an individual's comprehensive understanding of a topic. As Ludwig AI indicates, it is appropriate for use in general writing. Its communicative purpose is to emphasize expertise. It is most prevalent in news and media, science, and formal business contexts. While semantically similar alternatives exist, such as "he possesses considerable knowledge" or "he is highly knowledgeable", this particular phrasing remains a clear and effective way to convey someone's depth of understanding.

FAQs

How can I use "he has extensive knowledge" in a sentence?

You can use "he has extensive knowledge" to describe someone's expertise in a specific field. For example, "As a historian, he has extensive knowledge of ancient civilizations."

What are some alternatives to saying "he has extensive knowledge"?

You can use alternatives like "he possesses considerable knowledge", "he has deep understanding", or "he is highly knowledgeable" depending on the context.

Is it better to say "he has extensive knowledge" or "he is very knowledgeable"?

Both phrases are correct, but "he has extensive knowledge" emphasizes the breadth and depth of understanding, while "he is very knowledgeable" focuses on the quality of being informed. Choose the phrase that best fits the specific context.

How does "he has extensive knowledge" differ from "he has experience"?

"He has extensive knowledge" refers to a deep understanding of a subject, whereas "he has experience" refers to practical skills and insights gained from doing something. One can have knowledge without experience, and vice versa.

ChatGPT power + Grammarly precisionChatGPT power + Grammarly precision
ChatGPT + Grammarly

Editing plus AI, all in one place.

Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.

Source & Trust

85%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: