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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 attested that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "he attested that" is correct and usable in written English.
It can be used when someone is affirming or confirming the truth of a statement or fact, often in a formal context such as legal or official documents. Example: "In his testimony, he attested that he witnessed the events unfold as described."
✓ Grammatically correct
News & Media
Wiki
Science
Alternative expressions(20)
he confirmed that
he testified that
he declared that
he verified that
he affirmed that
he asserted that
he maintained that
he guaranteed that
he certified that
he validated that
he ascertained that
he illustrated that
he acknowledged that
he stated that
he reaffirmed that
he trusted that
he reassured that
he pretended that
he witnessed that
he emphasised 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
4 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
Human-verified similar examples from authoritative sources
Similar Expressions
52 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
More officials talked to Mr Martínez's oldest neighbours; they attested that he had always been the most elderly person they knew.
News & Media
He spoke of past corruption, and maybe some problems with the flow of information, but he also attested that BP was really, really doing what it ought to now, and that anyway the government was in charge.
News & Media
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
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
Since 1929 his best recordings have attested that he is not a Dixieland clarinettist but a kind of swing musician with modern overtones.
News & Media
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 attested that" in formal writing when you want to emphasize the solemnity or official nature of a declaration. It's particularly suited to legal, historical, or investigative contexts.
Common error
Avoid using "he attested that" in informal or conversational writing. Opt for simpler alternatives like "he said that" or "he confirmed that" to maintain a natural tone.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "he attested that" functions as a reporting verb construction, introducing a statement that someone has formally declared or affirmed. Ludwig AI confirms this is a correct and usable construction.
Frequent in
News & Media
75%
Wiki
12%
Science
13%
Less common in
Encyclopedias
0%
Formal & Business
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "he attested that" is a formal phrase used to indicate that someone has made a solemn or official declaration. Ludwig AI confirms its proper usage in written English. While grammatically correct, it is best suited for formal contexts like legal, historical, or investigative writing. Simpler alternatives like "he confirmed that" or "he said that" are preferable in informal settings. The phrase is most frequently found in News & Media, followed by Wiki and Science. Therefore, when choosing to use "he attested that", consider your audience and the overall tone of your writing to ensure it aligns with the intended level of formality.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
he confirmed that
A more direct and common way to express agreement or verification.
he verified that
Implies a check or investigation to ensure accuracy before confirming.
he testified that
Suggests a formal declaration, often in a legal or official setting.
he declared that
Indicates a public and often forceful announcement.
he affirmed that
Emphasizes the strength and conviction behind the statement.
he asserted that
Suggests a confident and forceful statement, potentially in the face of opposition.
he maintained that
Implies persistence in holding a particular belief or position.
he vouched that
Indicates strong personal support for the truth of something.
he guaranteed that
Conveys a high degree of certainty and assurance.
he certified that
Indicates official validation or endorsement of something.
FAQs
What does "he attested that" mean?
The phrase "he attested that" means that someone formally declared or affirmed something to be true, often based on personal knowledge or belief. It suggests a solemn or official declaration.
How to use "he attested that" in a sentence?
Use "he attested that" when you want to indicate a formal or emphatic declaration. For example, "During the trial, "he attested that" he was present at the scene of the crime".
What can I say instead of "he attested that"?
You can use alternatives like "he confirmed that", "he testified that", or "he declared that" depending on the context.
Is "he attested to that" grammatically correct?
While "he attested that" is more common and stylistically preferred, "he attested to the fact that" is also grammatically correct. However, using simply ""he attested that"" is usually more concise and impactful.
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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
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested