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
CEO of Professional Science Editing for Scientists @ prosciediting.com
is testified with
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is testified with" is not correct in standard written English.
It is not a commonly used expression and may confuse readers. Example: "The evidence is testified with the witness's account."
⚠ May contain grammatical issues
Science
News & Media
Alternative expressions(20)
is supported by
is confirmed by
is evidenced by
is validated by
is demonstrated by
is substantiated by
is reflected in
is attested by
is indicative of
is attached to
is issued with
is supplemented by
is reimbursed with
was presented with
is accompanied by
is substantiated with
be presented with
is joined with
is combined with
is submitted with
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
3 human-written examples
And the effectiveness of the presented schemes is testified with several numerical experiments.
Finally, the validity of the obtained parameters is testified with some other scenarios.
Some of these issues are of great interest by European Space Agency as this is testified with the launch of Alphasat in 2012.
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
Beavers cooperated with investigators and is testifying with immunity.
News & Media
Couchman volume-based equation was testified with the aid of those data.
Science
The relation between slip length and Darcy friction factor is theoretically analyzed with consideration of surface roughness effect, which was testified with the experimental results.
The resistance of MCF-7/MDR cell line towards DOX was testified with CCK8 assay.
A high interobserver reliability was testified with the ICC of X and Y was 0.88 and 0.81 respectively.
"For 25 years, people have been testifying with a degree of certainty that did not exist," Mr. Bednar said.
News & Media
She told Mr. Roth and Mr. Moynihan that she was testifying "with the full support of the administration".
News & Media
The second one is testified by gentle slopes with wide glacis at the foothills, locally covered by coarse waste deposits.
Expert writing Tips
Best practice
Avoid using the phrase "is testified with" in formal writing. Opt for more grammatically sound alternatives like "is supported by" or "is confirmed by" to ensure clarity and credibility.
Common error
Writers sometimes incorrectly use "is testified with" in an attempt to convey that something is proven by evidence. However, this phrasing is not standard English. Ensure you're using correct passive voice constructions, and consider if an active voice construction would be more direct and clear.
Source & Trust
86%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is testified with" functions as a linking phrase intended to connect a subject with supporting evidence or confirmation. However, Ludwig AI indicates that the phrase is not correct in standard written English. Therefore, it's primary function suffers from grammatical issues.
Frequent in
Science
66%
News & Media
34%
Formal & Business
0%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "is testified with" is grammatically incorrect in standard written English, according to Ludwig AI. While it appears in some scientific and news sources, it's advisable to avoid it in formal writing. More appropriate alternatives include "is supported by" or "is confirmed by", ensuring clarity and grammatical correctness. The intended purpose is to show that something is supported by evidence, but the incorrect grammar undermines this goal. Therefore, it is best to opt for grammatically correct alternatives.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
is supported by
This alternative replaces the passive voice construction with a more direct and grammatically sound option, emphasizing support rather than testimony.
is confirmed by
This phrase highlights the corroboration aspect, suggesting that something is being validated by evidence or findings.
is evidenced by
Focuses on the evidence that supports a claim or statement, making it a strong alternative in contexts where proof is central.
is demonstrated by
This emphasizes the act of showing or proving something through examples or data.
is validated by
Highlights the process of verifying or confirming the accuracy and reliability of something.
is substantiated by
This alternative stresses the provision of solid evidence to back up a claim or statement.
is borne out by
Suggests that something is confirmed or supported by facts or events, often implying a natural or expected outcome.
is reflected in
Indicates that something is mirrored or shown clearly within another element, offering a more indirect form of confirmation.
is attested by
Similar to "testified", but generally implies a formal or historical confirmation, often by multiple sources.
is indicative of
This alternative suggests that something serves as a sign or indication of another thing, implying a connection rather than direct proof.
FAQs
What are some alternatives to "is testified with"?
Instead of "is testified with", consider using phrases such as "is supported by", "is confirmed by", or "is evidenced by" for clearer and more grammatically correct writing.
Why is "is testified with" considered grammatically incorrect?
The phrase "is testified with" uses an incorrect passive voice construction. The verb 'testify' usually doesn't take 'with' in this context. It's better to use alternatives that accurately convey the intended meaning of evidence or confirmation.
In what contexts might I see "is testified with" used?
While not standard, "is testified with" might occasionally appear in non-native English writing or less formal contexts. However, it's advisable to replace it with more accepted phrases, especially in academic, professional, or journalistic writing.
How can I ensure my writing is clear and grammatically sound when conveying evidence?
When aiming to show that something is supported by evidence, use precise and clear language. Alternatives such as "is validated by", "is demonstrated by", or "is substantiated by" will enhance clarity and grammatical correctness.
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.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
86%
Authority and reliability
2.8/5
Expert rating
Real-world application tested