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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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he is diligent

Grammar usage guide and real-world examples

USAGE SUMMARY

It is correct and usable in written English.
You can use it when you want to describe someone who is hard-working or persistent. For example: "My boss is very diligent - he is always the first person in the office each morning."

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

14 human-written examples

"He is diligent, hardworking, intelligent.

He is diligent about what he eats.

He is diligent and puts a lot of effort in.

He is diligent about explaining the "disconcerting reasons" why this is so.

He is diligent about showing up at the city's tribal rites — hotel dinners, book parties, tributes.

News & Media

The New York Times

He is diligent in addressing leaders by proper titles, ranks, "Madam Speakers" and "Mr. Presidents" (a scout is reverent).

Show more...

Human-verified similar examples from authoritative sources

Similar Expressions

46 human-written examples

"He sees donations as investments in worthwhile projects, he does a lot of due diligence when looking at potential recipients, and he's diligent about holding their feet to the fire about doing what the money is supposed to do".

News & Media

The New York Times

But he was diligent.

He was diligent.

News & Media

The New York Times

"He's diligent in his preparation.

He's diligent, very well read, and insightful".

News & Media

The New Yorker
Show more...

Expert writing Tips

Best practice

When describing someone's character, use "he is diligent" to convey a strong sense of dedication and consistent effort. This phrase implies reliability and a commitment to completing tasks thoroughly.

Common error

Avoid using "he is diligent" when you simply mean someone is 'hard-working'. Diligence includes thoroughness and attention to detail, not just putting in long hours.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

87%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "he is diligent" functions as a subject-verb-complement construction, where 'he' is the subject, 'is' is the linking verb, and 'diligent' is the subject complement describing the subject's characteristic. Ludwig AI confirms its grammatical correctness and usability.

Expression frequency: Uncommon

Frequent in

News & Media

50%

Academia

30%

Science

20%

Less common in

Encyclopedias

0%

Wiki

0%

Formal & Business

0%

Ludwig's WRAP-UP

In summary, the phrase "he is diligent" is a grammatically correct and usable expression to describe someone who is hardworking, thorough, and attentive to detail. Ludwig AI validates this, and the examples highlight its presence in news articles, academic papers, and scientific publications. While not the most common phrase, it effectively communicates a strong work ethic and dedication to quality. Consider alternatives like "he is assiduous" or "he is industrious" to subtly shift the emphasis.

FAQs

How can I use "he is diligent" in a sentence?

You can use "he is diligent" to describe someone who is hard-working, thorough, and attentive to detail. For example, "He is diligent in his studies, always completing his assignments on time and with great care".

What are some alternatives to "he is diligent"?

Some alternatives to "he is diligent" include "he is assiduous", "he is industrious", or "he is conscientious". The best choice depends on the specific nuance you want to convey.

Is "he is diligent" formal or informal?

"He is diligent" is suitable for both formal and informal contexts. It's a clear and straightforward way to describe someone's work ethic.

What does it mean to say someone is diligent?

Saying someone is diligent means they are hardworking, careful, and thorough in their work. It implies a commitment to quality and attention to detail.

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Authority and reliability

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Expert rating

Real-world application tested

Most frequent sentences: