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
have not verified
Grammar usage guide and real-world examplesUSAGE SUMMARY
'have not verified' is correct and usable in written English.
For example, you could say: "The allegations have not been verified and should be treated with caution."
✓ Grammatically correct
News & Media
Science
Alternative expressions(5)
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
20 human-written examples
Authorities have not verified the authenticity of the email, or of a Facebook page set up under a similar name.
News & Media
Kookaburras enjoy them, however, and they are said to feel (I have not verified this) rather like a raw sausage.
News & Media
In some cases, documents have been signed by employees who say they have not verified crucial information like amounts owed by borrowers.
News & Media
For example, documents detailing how much borrowers owe have been signed by bank representatives who say they have not verified the information.
News & Media
Screeners are supposed to be legal residents of the United States and are not supposed to have major criminal convictions, but security companies sometimes have not verified the status or records of those they have hired.
News & Media
Tamar Lewin of The New York Times reported on studies that show that the women selected to be Playboy Playmates of the Year tend to look more mature during recessions — older, heavier, more reassuring — though I have not verified this personally.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
39 human-written examples
We haven't verified photos but the appear to match with previous details.
News & Media
I haven't verified this, but just the fact that someone thinks that true is a problem.
News & Media
We haven't verified these numbers, but it's definitely true that US companies avoid paying BILLIONS in US taxes by using tax havens.
News & Media
The Guardian has not verified the order independently.
News & Media
The reason was that I had not "verified" my account.
News & Media
Expert writing Tips
Best practice
When using "have not verified", ensure you clearly state what you haven't verified and why it's important. This adds transparency and credibility to your writing.
Common error
Avoid drawing strong conclusions based on information that "have not verified". Instead, focus on presenting the information as tentative or preliminary.
Source & Trust
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "have not verified" functions as a verbal phrase indicating a lack of confirmation or validation. It is typically used to qualify a statement or report, suggesting that the information presented is not yet fully substantiated. Ludwig confirms this usage.
Frequent in
News & Media
44%
Science
44%
Formal & Business
12%
Less common in
Academia
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "have not verified" is a grammatically sound and commonly used phrase for expressing a lack of confirmation or validation of information. It frequently appears in news and scientific contexts, reflecting its utility in conveying uncertainty with transparency. Ludwig provides several real-world examples to show proper usage, indicating that it should be deployed when presenting information that may be inaccurate or incomplete but hasn't yet been confirmed. Remember to avoid drawing strong conclusions when data "have not verified", and clarify what has not been verified to ensure clarity.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
have not confirmed
Focuses on a lack of official affirmation or endorsement.
have not validated
Emphasizes the absence of proof or evidence of correctness.
have not checked
Highlights the lack of examination for accuracy.
have not authenticated
Focuses on the absence of proof of genuineness.
have not substantiated
Stresses the lack of supporting evidence.
have not demonstrated
Emphasizes the absence of proof shown through action or evidence.
have not determined
Highlights the lack of a conclusive decision or finding.
have not proven
Stresses the absence of conclusive proof.
have not ascertained
Focuses on the lack of certainty achieved through investigation.
remain unverified
Highlights that something is still lacking confirmation.
FAQs
What does "have not verified" mean?
The phrase "have not verified" means that something hasn't been confirmed or proven to be true or accurate. It implies a lack of validation or substantiation.
What can I say instead of "have not verified"?
You can use alternatives like "have not confirmed", "have not validated", or "remain unverified" depending on the context.
When is it appropriate to use "have not verified" in writing?
It's appropriate to use "have not verified" when presenting information that you suspect may be inaccurate or incomplete but haven't had the opportunity to confirm. This ensures transparency and avoids misrepresentation.
Is it better to say "have not verified" or "cannot verify"?
Both "have not verified" and "cannot verify" are grammatically correct, but their meanings differ slightly. "Have not verified" suggests a lack of past verification, while "cannot verify" implies an inability to verify at all.
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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
88%
Authority and reliability
4.5/5
Expert rating
Real-world application tested