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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 existed that
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "has existed that" is not correct and does not convey a clear meaning in written English.
It is not typically used in standard English, as it lacks clarity and context. Example: "The concept has existed that time is relative is often debated in physics."
⚠ May contain grammatical issues
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
2 human-written examples
For over a decade now, a suspicion has existed that his considerable talents are no longer being stretched, and that a reliable diet of childhood nostalgia, hesitant piety and near-platitude is being served up like clockwork.
News & Media
For this purpose, a relationship must be established between the user foot and the last with which the style will be made; up until now, no model has existed that integrates both elements.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
At the time that they were aware that a problem could have existed, that's when it should have happened.
News & Media
About the only thing of which he, and most later investigators, felt confident was that the script did not record Greek: Greek speakers were not thought to have existed that long ago.
News & Media
Nevertheless, some differences could have existed that were not detected.
Science
More than a third of patients in our study had a reported neurofibroma, and other cases may have existed that were not formally registered, and therefore not reported to the study.
Science
As reviewed above, internal cooling surfaces must have existed that allowed sauropod dinosaurs to shed their excess body heat, and these presumably were located in the extensive air sac system and trachea of sauropods.
Science
While clues have existed that endosomal trafficking is associated with Alzheimer's disease (AD), whether it plays a central role in the disease and if so how has remained unknown.
Science
"The club community has survived because different needs have existed that the clubs have filled in," Chaz says.
News & Media
If a relevant COI had existed, that person would have been asked not to vote, in accordance with the recent consensus, 23 but no such case was encountered.
Science
Although our study protocol excluded medical conditions that could have affected the BMD, it is possible that other conditions may have existed that influenced the results.
Expert writing Tips
Best practice
Instead, restructure your sentence to use a more natural phrasing like "that has existed" or rephrase the sentence completely.
Common error
A common mistake is using "has existed that" to directly connect a noun phrase to a clause. For example, instead of writing "A belief has existed that...", prefer "The belief that... has existed for some time" or "The belief that... is not new". This ensures correct grammar and improves clarity.
Source & Trust
88%
Authority and reliability
1.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "has existed that" functions as a connector, attempting to link a preceding idea with a subsequent clause. However, as noted by Ludwig AI, this construction is not grammatically sound and lacks clarity in standard English. The examples provided by Ludwig showcase the phrase's presence in varied contexts, yet they also highlight its infrequent and often incorrect usage.
Frequent in
News & Media
50%
Science
50%
Formal & Business
0%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "has existed that" is grammatically incorrect and not recommended for use in standard English. Ludwig AI confirms this assessment, emphasizing its lack of clarity and infrequent correct usage. While it appears in contexts such as news and scientific articles, its awkward construction detracts from its effectiveness. Instead, consider using alternatives like "that has existed" or rephrasing the sentence to improve clarity and grammatical correctness. Always prioritize clear and conventional phrasing in your writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that has existed
Reorders the phrase to create a more conventional grammatical structure.
that has been in existence
Replaces "existed" with "been in existence" for a more formal tone.
which has existed
Uses "which" instead of "that" to introduce a nonrestrictive clause.
that was in place
Uses "was in place" to describe something being established.
that was the case
Emphasizes a condition or situation being present.
that was established
Focuses on the act of something being created or started.
that prevailed
Suggests dominance or widespread acceptance.
that was around
An informal way of saying something was present.
that was available
Implies accessibility or readiness.
that was present
Simply indicates being there.
FAQs
How can I rephrase a sentence that uses "has existed that"?
Instead of "has existed that", try using "that has existed", or restructuring your sentence to say "the idea that has been around for..." This will make your writing clearer and more grammatically correct.
What are some alternatives to the phrase "has existed that"?
Consider using phrases like "that was the case", "that was established", or simply rephrasing the sentence to avoid the construction altogether.
Is "has existed that" grammatically correct in English?
No, "has existed that" is not considered grammatically correct in standard English. It is better to use phrases like "that has existed" or restructure your sentence for better clarity.
When is it appropriate to use "has existed that" in writing?
Due to its awkwardness and lack of common usage, it is generally not appropriate to use "has existed that" in formal or informal writing. Opt for clearer, more standard alternatives.
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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
1.8/5
Expert rating
Real-world application tested