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
corroborated against
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "corroborated against" is not correct in standard written English.
The correct usage would typically involve "corroborated" being used with "with" or "by," rather than "against." Example: "The witness's testimony was corroborated by the evidence presented in court."
⚠ May contain grammatical issues
Science
News & Media
Alternative expressions(20)
vetted against
demonstrated against
benchmarked against
reassessed against
affirmed against
backed up by
reconciled against
asserted against
validated by
acknowledged against
substantiated by
authenticated by
proven against
uphold against
tested against
assessed in relation to
verified with
checked against
measured against
corroborated by
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
11 human-written examples
Modeling results have been corroborated against the Direct Numerical Simulation database of a spatially evolving, planar turbulent jet flame.
Science
An air brake testing facility has been set up at Texas A&M University and this model will be corroborated against experimental data obtained from the same.
The distribution of this development is described with respect to the Townsend material deprivation score, corroborated against the Breadline Britain index.
Science
The model is corroborated against groundwater solute concentrations, mass loadings of solutes to the Arkansas River, relationships between solutes within the groundwater system, and overall regional statistics of groundwater solute concentration.
Science
The validity of the predictions of disorder and correlated mutations were corroborated against structural information.
Science
Transcripts were corroborated against the tapes.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
49 human-written examples
Corroborating against data from previous analysis Ki67 expression (Berney et al, 2009), we found no evidence of inverse correlation between mir143 and Ki67 (treated dichotomous with cutoff 5).
Science
15 As flagged values, indicating low scores, were common in this low birthweight population we corroborated these against paper records and infant growth trajectories.
Science
For example, deterministic gene regulatory models should be corroborated solely against the biological trend component; stochastic models will also include biological noise components.
The mayor noted that the threat information had not been corroborated and warned against an overreaction.
News & Media
Physicians for Human Rights has catalogued and corroborated three hundred and sixty-five attacks against Syrian medical facilities, more than ninety per cent of which were perpetrated by Syrian and Russian government forces.
News & Media
Expert writing Tips
Best practice
When aiming for clarity and grammatical correctness, use "corroborated by" or "supported by" instead of "corroborated against". This ensures your writing aligns with standard English usage.
Common error
Avoid using "against" with "corroborated". This preposition doesn't accurately convey the relationship between the information being corroborated and the source of corroboration. Use "by" or "with" instead.
Source & Trust
85%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "corroborated against" functions as a passive construction, but Ludwig AI suggests it's not grammatically correct. Standard usage calls for "corroborated by" or "corroborated with" to indicate the supporting evidence.
Frequent in
Science
60%
News & Media
30%
Formal & Business
10%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, while the phrase "corroborated against" appears in some writing, Ludwig AI indicates that it is not grammatically correct in standard English. The proper usage involves "corroborated by" or "corroborated with" to show support or validation. Although the phrase appears across Science and News & Media sources, opting for grammatically standard alternatives, such as "supported by" or "confirmed by", ensures clarity and correctness in your writing. Therefore, writers should avoid "corroborated against" to maintain grammatical accuracy.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
corroborated by
Uses the correct preposition to indicate what provides the confirmation.
supported by
Indicates evidence strengthens or validates a claim or finding.
verified with
Focuses on confirming the accuracy or truth of something using another source.
confirmed by
States that something is proven to be true or accurate through additional evidence.
validated by
Implies that something has been checked and officially confirmed as correct.
substantiated by
Indicates that claims or findings have been supported with solid proof or evidence.
backed up by
Informal way of saying evidence or information provides support.
authenticated by
Means to prove or show something to be genuine or valid.
attested by
Indicates that something is affirmed to be true or genuine.
borne out by
Phrases indicates that something has been confirmed to be true or accurate.
FAQs
What's the correct way to use "corroborate" in a sentence?
The verb "corroborate" typically takes "by" or "with", indicating what the information is supported by. For instance, "The witness's statement was "corroborated by" the evidence".
Is "corroborated against" grammatically correct?
No, "corroborated against" is not considered standard English. The correct preposition to use with "corroborated" is "by" or "with".
What are some alternatives to "corroborated against"?
Instead of "corroborated against", you can use phrases like "supported by", "confirmed by", or "verified with".
How does "corroborated by" differ from "corroborated against"?
"Corroborated by" indicates that something is supported or confirmed by evidence, while "corroborated against" is not a standard or grammatically correct construction. The former is the preferred usage.
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
85%
Authority and reliability
2.8/5
Expert rating
Real-world application tested