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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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I need proof

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "I need proof" is correct and usable in written English.
You can use it when you are requesting evidence or verification of a claim or statement. Example: "Before I can believe your story, I need proof that it actually happened."

✓ Grammatically correct

News & Media

Science

Wiki

Human-verified examples from authoritative sources

Exact Expressions

5 human-written examples

"I need proof," Steven Jubera, a prosecutor in Hernando, Mississippi, told the Memphis TV station WREG.

I need proof of funds.

News & Media

TechCrunch

Well, I need proof of shares.

News & Media

TechCrunch

Do I need proof that my partners are not having a scandalous D/s affair with me?

News & Media

Huffington Post

Can I be a mom who will always be worth looking up to? 1. Faith: My faith brings me comfort in this modern "I need proof" and "I need answers now" world.

News & Media

Huffington Post

Human-verified similar examples from authoritative sources

Similar Expressions

55 human-written examples

IF I needed proof that travel has lost its glamour, I got it by watching the first few episodes of "Airline," A&E's new reality series.

If I needed proof, it comes when I hear Mary Berry describe a perfect brioche on TV and my eyes start to prick.

Well, I know there is life outside of Earth, I don't need proof.

News & Media

Vice

It was bad! (I have pictures if you need proof!) I can laugh about it now, but it was a critical lesson learned.

News & Media

Huffington Post

But in the spirit of Pound's brave new world of drug testing, I don't need proof.

I don't need proof.' " The change in American administrations injects further uncertainty for Mr. Saakashvili, who enjoys warm personal friendships with President Bush and Senator McCain.

News & Media

The New York Times
Show more...

Expert writing Tips

Best practice

When using the phrase "I need proof", ensure that the context clearly indicates what claim or statement requires verification. Be specific about what constitutes acceptable proof.

Common error

Avoid using "I need proof" in a way that sounds accusatory or confrontational. Instead, frame it as a genuine request for clarification or further information to maintain a constructive tone.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

82%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "I need proof" functions as a declarative statement expressing a requirement for evidence or verification. As supported by Ludwig, this phrase seeks to substantiate a claim or validate a statement. Examples from Ludwig show the phrase used in news, lifestyle, and technical contexts.

Expression frequency: Common

Frequent in

News & Media

40%

Wiki

20%

Science

20%

Less common in

Formal & Business

10%

Academia

5%

Reference

5%

Ludwig's WRAP-UP

The phrase "I need proof" is a common and grammatically sound way to express a requirement for evidence, as confirmed by Ludwig. Its primary function is to seek validation or justification. While generally neutral in register, context influences its perceived formality. Ludwig’s examples reveal its use across diverse settings, from news to personal blogs. Alternatives such as "I require substantiation" offer more formal substitutes. To avoid misinterpretation, clarity in the requested proof and a non-accusatory tone are crucial.

FAQs

What can I say instead of "I need proof"?

You can use alternatives like "I require substantiation", "I demand verification", or "Show me the evidence" depending on the context.

Is it appropriate to use "I need proof" in formal writing?

While grammatically correct, "I need proof" might sound informal. In formal writing, consider using phrases like "Evidence is required" or "Verification is necessary" for a more professional tone.

How can I make the request for "proof" sound less accusatory?

Instead of saying "I need proof", try phrasing it as a question: "Could you provide evidence to support that?" or "What data supports this claim?" This approach is less direct and more collaborative.

What kind of evidence qualifies as "proof"?

The type of evidence needed depends on the context. It could be data, documents, expert opinions, or eyewitness accounts. Make sure to specify what type of evidence you require for it to be considered valid.

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Source & Trust

82%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: