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
they prove
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "they prove" is correct and usable in written English.
It can be used when discussing evidence or results that demonstrate the truth or validity of a statement or hypothesis. Example: "The results of the experiment are clear; they prove that the new drug is effective in treating the disease."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(20)
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
60 human-written examples
Could they prove it?
News & Media
They prove it.
News & Media
How accurate will they prove?
News & Media
"What can they prove?
News & Media
Once discerned, however, they prove astonishingly diverse.
News & Media
If they prove effective, they are promoted.
News & Media
They prove their seriousness by killing.
News & Media
Do they prove that Puckett used steroids?
News & Media
If they prove ineffective, they are discarded.
News & Media
Then they prove highly destructive.
News & Media
How can they prove she's right?
News & Media
Expert writing Tips
Best practice
When using "they prove", ensure that the subject clearly refers to specific evidence or results that directly support the claim you are making. Clarity in subject-verb agreement is essential for effective communication.
Common error
Avoid using "they prove" when the evidence is suggestive but not conclusive. Instead, opt for phrases like "they suggest" or "they indicate" to accurately reflect the strength of the support.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "they prove" functions as a declarative statement, asserting that a preceding subject (plural) provides conclusive evidence or validation for a claim. As confirmed by Ludwig, this phrase is commonly used to present findings or observations as definitive proof.
Frequent in
News & Media
45%
Science
30%
Formal & Business
10%
Less common in
Wiki
5%
Encyclopedias
5%
Reference
5%
Ludwig's WRAP-UP
In summary, the phrase "they prove" is a grammatically sound and very common expression used to assert that certain evidence conclusively validates a claim or hypothesis. Ludwig AI confirms its correctness and widespread applicability. It is frequently encountered in news articles, scientific publications, and business reports, indicating a neutral to formal register. When employing this phrase, ensure the evidence is indeed conclusive to avoid overstatement. Alternatives such as "they demonstrate", "they establish", and "they confirm" can be considered for nuanced expression.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
they demonstrate
Replaces "prove" with a more general term for showing something to be true, suitable for a wider range of contexts.
they establish
Indicates a firmer confirmation or validation than "prove", suggesting that something is definitively shown.
they confirm
Emphasizes the corroboration of existing information or beliefs, rather than original proof.
they validate
Focuses on verifying the accuracy or soundness of something, often used in technical or scientific contexts.
they substantiate
Highlights the provision of evidence to support a claim, making it more concrete and believable.
they evince
A more formal term that suggests a clear indication or demonstration of something.
they attest to
Implies providing testimony or evidence to support the truth or validity of something.
they bear out
Suggests that something confirms or supports the accuracy of a prediction or expectation.
they give credence to
Indicates that something adds believability or support to a particular idea or claim.
they serve as evidence of
A more explicit way of stating that something functions as proof or indication of a particular fact.
FAQs
How can I use "they prove" in a sentence?
Use "they prove" when you want to show that something demonstrates the truth or validity of a statement or hypothesis. For instance, "The results of the experiment are clear; "they prove" that the new drug is effective in treating the disease."
What are some alternatives to "they prove"?
You can use alternatives like "they demonstrate", "they establish", or "they confirm" depending on the context.
Is it correct to use "they prove" in formal writing?
Yes, "they prove" is suitable for formal writing, especially when discussing research findings or presenting factual evidence. However, ensure that the evidence genuinely supports the claim to avoid overstating your case.
What's the difference between "they prove" and "they suggest"?
"They prove" indicates conclusive evidence, while "they suggest" implies that the evidence points towards a conclusion but is not definitive. Use "they suggest" when the evidence is less conclusive.
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested