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

is testament of

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "is testament of" is not correct in standard written English.
The correct expression is "is a testament to." Example: "Her dedication to her work is a testament to her strong character."

⚠ May contain grammatical issues

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

2 human-written examples

Poon's blog Feeding Hannibal is testament of how much effort goes into presentation: ingredients like lotus roots, heritage tomatoes and pomegranates are added to trigger trypophobia; spider orchids and porcupine quills decorate plates and warn of hidden dangers.

“This recent fixture is testament of the strong fundamentals of the ultra-deep-water-drilling segment, which is underpinned by the large exploration and production projects already under way by oil majors and national oil companies,” said Economou.

News & Media

Forbes

Human-verified similar examples from authoritative sources

Similar Expressions

58 human-written examples

I go back to that period of stress and the orderly settlements of large amounts of credit derivatives, for names that were widely followed, were testament of the efficiency of the auction system".

News & Media

The New York Times

Second, the identification of TCF7L2 is testament to the validity of susceptibility-gene discovery through indirect linkage disequilibrium-mapping approaches [ 23].

This transformation of Malian society is testament to the effectiveness of the Salafist movement.

News & Media

The Guardian

The progress of players like Ali Crawford, Ziggy Gordon, Darian McKinnon, Stephen Hendrie and Grant Gillespie is testament to the worth of the club's strategy.

News & Media

BBC

The safe return of VS43 is testament to the outstanding professionalism of aviation.

News & Media

Independent

"It is testament to the lack of seriousness with which these kinds of incidents are treated.

News & Media

Independent

A universal theme of 'too many funerals' is testament to the high levels of sickness, grief and loss.

Science

BMJ Open

"It is testament to the strength of the market here".

News & Media

The New York Times

It is testament to the Solzhenitsyn of Wapping's astounding resilience that he resisted the latter.

News & Media

Independent
Show more...

Expert writing Tips

Best practice

Always use the correct grammatical form: "is a testament to" or "is testament to", ensuring the sentence is clear and grammatically sound.

Common error

Avoid omitting the article "a" when using "testament" as a noun. The correct phrasing is "is a testament to", not "is testament to."

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

86%

Authority and reliability

2.8/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "is testament of" attempts to function as a linking verb followed by a noun phrase, aiming to describe something as evidence or proof. However, according to Ludwig AI, it requires the article 'a' and the preposition 'to' to be grammatically correct.

Expression frequency: Rare

Frequent in

News & Media

50%

Science

50%

Formal & Business

0%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, while the phrase "is testament of" aims to convey that something serves as evidence or proof, it is grammatically incorrect. The correct form is "is a testament to". Ludwig AI highlights this grammatical error, suggesting it should be avoided in formal writing. Despite some occurrences in news and scientific contexts, adhering to the grammatically correct form ensures clarity and credibility. Alternatives like "is evidence of" or "is proof of" can be used to maintain grammatical accuracy while conveying a similar meaning.

FAQs

What is the correct way to use "testament" in a sentence?

The correct form is "is a testament to". For example, "This achievement is a testament to their hard work."

What can I say instead of "is a testament to"?

You can use alternatives like "is evidence of", "is proof of", or "is indicative of" depending on the context.

Is there a difference between "is testament of" and "is a testament to"?

Yes, "is testament of" is grammatically incorrect. The correct phrase is "is a testament to", which means something serves as proof or evidence of something else.

How to use "is a testament to" in a sentence?

Use it to show that something proves or demonstrates something else. For example, "The company's success is a testament to its innovative strategies."

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

86%

Authority and reliability

2.8/5

Expert rating

Real-world application tested

Most frequent sentences: