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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
CEO of Professional Science Editing for Scientists @ prosciediting.com
he attests that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "he attests that" is correct and usable in written English.
It can be used when someone is affirming or declaring something as true, often in a formal or legal context. Example: "In his statement, he attests that he witnessed the event firsthand."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(20)
he asserts that
he claims that
he states that
he says that
he declares that
he affirms that
he maintains that
he confirms that
he illustrates that
he guarantees that
he emphasizes that
he demonstrates that
he relates that
he acknowledges that
he reveals that
he assures that
he proves that
he represents that
he indicates that
he reiterates that
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
1 human-written examples
He attests that the post actually read 'nice girls' instead of 'fine ladies' and that the commentary was removed within minutes, but people are still talking about it.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
He attested that the chief minister told them to let the mobs vent their anger.
News & Media
Upon his return, and shortly before beginning college that fall, he became a naturalized citizen; as part of that process, he attested that he had never entered the United States illegally.
News & Media
He attested that he acted in self-defense.
Wiki
Darwin also made reference to the evolution of emotions and he attested that animals were also capable of such feelings.
News & Media
He himself attests that he was healed miraculously as a child by the intervention of Francis of Assisi, shortly after the saint's death on 3 October 1226[2]: "when I was a boy, as I still vividly remember, I was snatched from the jaws of death by his invocation and merits".
Science
They point to a series of incidents, including a letter he signed attesting that he witnessed Hine sign a photograph that tests showed was printed decades after his death.
News & Media
More officials talked to Mr Martínez's oldest neighbours; they attested that he had always been the most elderly person they knew.
News & Media
Gilbert Moore attests that he was constantly on edge around the Panthers.
News & Media
In addition, no document attests that he received an education.
Wiki
Imploring the Iranian judiciary to let him at least testify at her appeal he said that, as the person who had "shared every moment with her" he could attest that it was impossible for her to have worked as a spy.
News & Media
Expert writing Tips
Best practice
Use "he attests that" when you want to convey a sense of formality and credibility in someone's statement. It's particularly effective in legal, journalistic, or academic contexts where the reliability of the information is important.
Common error
Avoid using "he attests that" in casual conversation or informal writing. Opt for simpler alternatives like "he says that" or "he claims that" to maintain a natural and approachable tone.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "he attests that" functions as a reporting clause, introducing a statement or declaration made by a male subject. It indicates that the subject is affirming the truth of something, often based on personal knowledge or belief, as shown in Ludwig.
Frequent in
News & Media
50%
Wiki
20%
Science
15%
Less common in
Encyclopedias
5%
Formal & Business
5%
Reference
5%
Ludwig's WRAP-UP
In summary, "he attests that" is a grammatically correct phrase used to introduce a formal declaration or affirmation made by a male subject. Ludwig AI confirms its validity and usability in written English. While versatile, this phrase is best suited for formal or neutral contexts like journalism and academic writing rather than casual conversation. Alternatives such as "he declares that" or "he says that" can be used for simpler communication. The phrase's formality enhances the credibility of the statement, emphasizing that it is based on personal knowledge or conviction.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
he declares that
Replaces "attests" with a more straightforward term for stating something firmly.
he affirms that
Uses a word that suggests a strong confirmation of something.
he states that
Offers a neutral alternative, simply indicating that he made a statement.
he asserts that
Emphasizes the confidence or forcefulness of his claim.
he testifies that
Highlights the act of giving evidence or bearing witness.
he maintains that
Suggests that he consistently holds a particular belief or position.
he confirms that
Implies that he is verifying something already known or suspected.
he vouches that
Indicates that he is standing behind the truth or reliability of something.
he avers that
Presents a formal and emphatic declaration.
he swears that
Adds a sense of solemnity and commitment to the declaration, often in a legal or formal setting.
FAQs
What does "he attests that" mean?
The phrase "he attests that" means he declares or affirms something to be true, often based on personal knowledge or experience. It suggests a formal or solemn declaration.
When is it appropriate to use "he attests that" in writing?
It's appropriate in formal writing, legal documents, or journalistic contexts where you want to emphasize the credibility or personal knowledge behind a statement. Consider using "he states that" or "he says that" in less formal settings.
What are some alternatives to "he attests that"?
Alternatives include "he declares that", "he affirms that", "he testifies that", or simply "he says that". The best choice depends on the specific context and the level of formality required.
Is "he attests that" more formal than "he says that"?
Yes, "he attests that" is more formal than "he says that". "Attests" implies a solemn or formal declaration, often based on personal knowledge or belief, while "says" is a neutral and less emphatic term. Therefore, "he says that" could be used in informal contexts.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested