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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
has attested that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "has attested that" is correct and usable in written English.
It can be used when someone is confirming or providing evidence for a statement or fact. Example: "The witness has attested that she saw the defendant at the scene of the crime."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(20)
has confirmed that
has verified that
has declared that
has affirmed that
has maintained that
has demonstrated that
has indicated that
has suggested that
has pointed out that
has illustrated that
has emphasised that
has reaffirmed that
has acknowledged that
has certified that
has validated that
has asserted that
has corroborated that
has ascertained that
has stated that
has shown 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
2 human-written examples
The current owner of the prototype cartridge has attested that the game appears to be nearly complete, though it was never officially announced by either Rare or Nintendo.
Wiki
The process of developing the CDEs for the CPCTR has attested that this approach can successfully lead to the implementation of robust prostate tissue CDEs that guide the collection of quality data at over 18 different institutions or hospitals [ 6, 19, 20].
Science
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
Congressional representatives on the scene have attested that the captives are not being tortured or starved.
News & Media
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
A battery of professionals had attested that my son's behaviors weren't the direct result of my useless parenting.
News & Media
After the major fish kill at the end of 2010, and the deaths of thousands of birds also reported nearby in Arkansas days later on New Years Eve, news of mass animal deaths from around the world began receiving prominent coverage, though officials have attested that the events are not connected.
News & Media
Study participants have attested that ' no one considers uncircumcised girl in the community for marriage.
Science
Many efforts [ 11- 13] to explain the determinants for PME compliance have attested that they are multifaceted and complex.
Science
Respondents in this study have attested that FGM is a practice that the religion claims is a right for the women.
Science
If Venturi thought Palmer had cheated, he would not (and should not) have attested to that 3 on the scorecard.
News & Media
Yet, at trial, Reed's lawyers did very little to establish Reed's relationship with Stites, even though there were multiple witnesses who could have attested to that relationship.
News & Media
Expert writing Tips
Best practice
When using "has attested that", ensure the context clearly indicates who is providing the testimony or evidence, adding credibility to your statement.
Common error
Avoid using "has attested that" without clearly identifying the source of the attestation, as this can weaken the impact of the statement and raise questions about its validity.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "has attested that" functions as a reporting verb phrase introducing a statement or testimony. It connects a subject (someone who is attesting) with the content of their attestation. As Ludwig AI explains, the phrase is grammatically correct.
Frequent in
News & Media
33%
Science
33%
Wiki
17%
Less common in
Encyclopedias
8%
Formal & Business
8%
Science & Research
0%
Ludwig's WRAP-UP
In summary, the phrase "has attested that" is a grammatically correct and usable phrase for formally confirming or providing evidence. As Ludwig AI states, it's suitable for professional, academic, or legal contexts. While not overly common, its usage lends credibility to statements by indicating a reliable source. When using the phrase, ensure the source of the attestation is clearly identified to maximize its impact. Alternatives such as "has confirmed that" or "has verified that" can be used depending on the context.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
has affirmed that
Replaces "attested" with "affirmed", indicating a strong declaration of truth.
has verified that
Substitutes "attested" with "verified", implying confirmation of accuracy.
has confirmed that
Replaces "attested" with "confirmed", suggesting validation of a previous statement.
has vouched that
Uses "vouched" instead of "attested", implying personal assurance of truth.
has declared that
Substitutes "attested" with "declared", indicating a formal statement.
has maintained that
Replaces "attested" with "maintained", suggesting a consistent claim.
has demonstrated that
Uses "demonstrated" instead of "attested", implying proof or evidence.
has indicated that
Substitutes "attested" with "indicated", suggesting a sign or hint.
has suggested that
Replaces "attested" with "suggested", implying a proposition.
has pointed out that
Uses "pointed out" instead of "attested", meaning to bring attention to a fact.
FAQs
How can I use "has attested that" in a sentence?
You can use "has attested that" to show that someone has provided evidence or confirmed something. For example, "The witness "has attested that" she saw the defendant at the scene."
What are some alternatives to saying "has attested that"?
Alternatives include "has confirmed that", "has verified that", or "has declared that", depending on the specific nuance you want to convey.
Is "has attested that" formal or informal?
"Has attested that" is generally considered a formal phrase suitable for legal, academic, or professional contexts. Less formal alternatives might be more appropriate for casual conversation.
What's the difference between "has attested that" and "has stated that"?
"Has attested that" implies a formal declaration, often under oath or with significant weight, whereas "has stated that" is a more neutral term simply indicating that someone has made a statement.
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested