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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
we need proof
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "we need proof" is correct and usable in written English.
It can be used when requesting evidence or verification of a claim or statement. Example: "Before we proceed with the project, we need proof that the funding has been secured."
✓ Grammatically correct
News & Media
Wiki
Science
Alternative expressions(2)
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
Analyst Anthony Codling at Jefferies said: If ever we need proof that the housing market is recovering, we have it now.
News & Media
"We need proof, and what we proved was an individual who was in that van was the son of a leading Hezbollah patriot".
News & Media
But Dr Olivier Rabin, Wada's director of science, said: "We need proof we can transfer such results to humans".
News & Media
We need proof points, and if the proof points are there we have got 10 to 50 or 60 million available capital for each company".
News & Media
"We need proof," she said.
News & Media
But most of us realize we need proof of income for virtually everything.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
47 human-written examples
"If ever we needed proof, it was this election," he said.
News & Media
"As if ever we needed proof that iceberg lettuce is necessary," said Marion, who early in her career had been a spokeswoman for the oft-maligned leaves.
News & Media
If ever we needed proof that Vince Cable's sale of Royal Mail was done far too cheaply at 330p a share, yesterday we learned that the second batch of the taxpayer's stock was offloaded at 500p.
News & Media
Commissioner Bud Selig, stepping forward with the hardware at the end, was given a fat round of boos, thus proving — if we needed proof — that the right guys and right crowd won this thing.
News & Media
25, 26 In this study, a standard patient dose was chosen as we needed proof of concept that it is possible to replicate a physiological pattern of replacement and safety had to be of foremost importance.
Science
Expert writing Tips
Best practice
When using "we need proof", ensure the context clearly indicates what claim or statement requires verification. Specificity enhances clarity.
Common error
Avoid using "we need proof" without a clear subject or object. Vague statements can confuse the audience. Instead of saying "we need proof", specify "we need proof that the system works efficiently".
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "we need proof" functions as a declarative statement expressing a requirement for verification or validation. It explicitly states the need for evidence to support a claim or assertion. This is supported by Ludwig, which identifies it as a correct and usable phrase.
Frequent in
News & Media
40%
Wiki
30%
Science
20%
Less common in
Formal & Business
5%
Encyclopedias
3%
Academia
2%
Ludwig's WRAP-UP
In summary, "we need proof" is a grammatically sound and widely used phrase that expresses the necessity for verification or validation. According to Ludwig, it is a correct and versatile statement applicable across various contexts. Its neutral register allows for use in both formal and informal settings, as evidenced by its presence in news media, wikis, and scientific publications. To ensure clarity, specify what requires verification when using the phrase. While alternatives such as "evidence is required" or "verification is necessary" exist, "we need proof" remains a direct and effective way to convey the need for substantiation.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
evidence is required
Emphasizes a formal requirement for evidence.
verification is necessary
Highlights the necessity of verifying something.
provide supporting documentation
Requests formal paperwork as evidence.
we must have confirmation
Focuses on obtaining confirmation, suggesting a prior expectation.
substantiation is needed
Indicates the need for concrete support or validation.
let's see the facts
Focuses on uncovering and examining factual information.
establish the facts
Highlights the need to make facts concrete.
show me the data
An informal request for specific data as proof.
prove it to me
A direct and sometimes challenging request for proof.
I need to see it to believe it
Expresses skepticism and a need for visual or direct proof.
FAQs
What can I say instead of "we need proof"?
You can use alternatives like "evidence is required", "verification is necessary", or "substantiation is needed" depending on the context.
How to use "we need proof" in a sentence?
You can use "we need proof" when requesting verification or confirmation of a statement. For example, "Before investing, we need proof of the company's financial stability".
What's the difference between "we need proof" and "we need evidence"?
While both phrases indicate a need for verification, "we need evidence" is often used in legal or formal contexts, while "we need proof" can be used more broadly. They are largely interchangeable, but consider the context.
Is it correct to say "we need to proof" instead of "we need proof"?
No, "we need to proof" is grammatically incorrect. "Proof" is a noun in this context, so the correct phrase is "we need proof". The word "proof" can also be used as a verb, but in a different situation i.e. "proof the dough".
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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