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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
has not been supported
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "has not been supported" is correct and usable in written English.
It can be used to indicate that something has not received backing or endorsement, often in contexts related to research, arguments, or proposals. Example: "The theory has not been supported by any substantial evidence, leading to skepticism among experts."
✓ Grammatically correct
Science
News & Media
Formal & Business
Alternative expressions(20)
lacks support
is not substantiated
is not corroborated
is unconfirmed
has not been verified
has not been validated
is without foundation
is not justified
has not been used
has not been named
has not been caught
has not been elected
has not been indicted
has not been solved
has not been prosecuted
has not been arrested
has not been suspended
has not been announced
has not been disappointed
has not been completed
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
Kermit-32: unknown; Kermit-32 has not been supported since about 1987.
Academia
However, this assumption has not been supported by large, population-based longitudinal studies.
However, this view has not been supported by any systematic study across the whole state.
Science
Polly Toynbee's defence of the welfare state has not been supported.
News & Media
"This has not been supported by transportation planners, law enforcement officials and local officials," he said.
News & Media
However, this finding has not been supported by results from other methods of detection.
Encyclopedias
Mr Keys' passionate stance against the war in Iraq has not been supported by some of the older veterans.
News & Media
(If your question concerns Kermit-32 on VMS, please note that Kermit-32 has not been supported since 1987; the supported Kermit software for VMS is C-Kermit).
Academia
But this positive environment has not translated into better health for African women, because it has not been supported by the funding required for implementation.
News & Media
The oxygen transfer rate calculated from the model showed good agreement with observations, hence showing improvement compared to the previous model which has not been supported by observations.
Science
Although innovation is generally regarded as a means of improving the competitiveness of firms and their performance, this relationship has not been supported unambiguously by empirical work.
Science
Expert writing Tips
Best practice
When using "has not been supported", clearly state what lacks support and, if possible, why. This adds clarity and strengthens your argument. For example, "This claim has not been supported by empirical evidence, leading to further investigation."
Common error
While "has not been supported" is grammatically correct, overuse of the passive voice can make your writing sound weak or unclear. Consider using active voice constructions where appropriate to make your writing more direct and impactful. For example, instead of "The research has not been supported by clinical trials", try "Clinical trials have not supported the research".
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "has not been supported" functions as a negative passive construction. It indicates that a subject (e.g., a theory, a claim, an idea) has not received the necessary evidence, approval, or validation. As Ludwig AI states, it's grammatically correct.
Frequent in
Science
46%
News & Media
33%
Formal & Business
5%
Less common in
Encyclopedias
2%
Academia
4%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "has not been supported" is a grammatically sound and frequently used expression to denote a lack of evidence or validation for a given subject. Ludwig AI confirms its correctness and usability. Predominantly found in scientific and news-related contexts, its register ranges from neutral to formal, making it suitable for various professional and academic environments. When using this phrase, ensure clarity by specifying what lacks support and the reasons why. While valid, avoid overusing the passive voice. Alternatives like "lacks support" or "is not backed" offer more active phrasing. By understanding its nuances and usage patterns, you can effectively incorporate "has not been supported" into your writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
lacks support
This alternative directly states the absence of support.
is not backed
This phrase emphasizes the absence of backing or endorsement.
is not upheld
This alternative highlights that something has not been maintained or defended.
is not substantiated
This suggests a lack of evidence to prove or validate something.
is not corroborated
This implies that other sources do not confirm the information.
is unconfirmed
This indicates that something is not yet verified or established.
has not been verified
This emphasizes the absence of a verification process to prove its accuracy.
has not been validated
This indicates that something hasn't passed the validation process.
is without foundation
This suggests a complete absence of basis or justification.
is not justified
This alternative conveys that something lacks a valid justification.
FAQs
How can I rephrase "has not been supported" to sound more active?
You can use active alternatives such as "lacks support", "is not backed", or "is not justified". For example, instead of "The hypothesis "has not been supported" by the data", you could say "The data does not support the hypothesis".
What does it mean when a claim "has not been supported"?
When a claim ""has not been supported"", it means there is a lack of evidence or backing to prove its validity. This could be due to insufficient data, conflicting results, or absence of corroborating information.
Is "has not been supported" formal or informal?
"Has not been supported" is generally considered neutral to formal. While it can be used in a variety of contexts, it is often found in academic, scientific, and professional writing.
What's the difference between ""has not been supported"" and "is not supported"?
While similar, ""has not been supported"" implies a process over time where support was expected or looked for but not found. "Is not supported" simply states the current lack of support without necessarily implying a prior expectation.
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested