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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 previously
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "has not previously" is correct and usable in written English.
It can be used to indicate that something has not happened or been the case at any time before the present moment. Example: "The applicant has not previously applied for this position."
✓ Grammatically correct
Science
News & Media
Academia
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
This behavior has not previously been reported.
Science
This has not previously been attempted.
Science
Such research has not previously been undertaken.
The move has not previously been reported.
News & Media
This is an issue this Court has not previously addressed.
Academia
This latter phenomenon has not previously been described in CTCL.
Academia
To my knowledge, that argument has not previously been made.
Academia
This problem has not previously been studied mechanistically.
Science
This novel technology has not previously been tested in limestone.
To our knowledge, this possibility has not previously been explored.
This has not previously been investigated for AED-training.
Science
Expert writing Tips
Best practice
When using "has not previously", ensure that the context supports this claim. If there is any doubt about its absolute novelty, consider softening the statement with qualifiers like "to our knowledge" or "as far as we can determine".
Common error
Avoid using "has not previously" if there's a possibility that similar instances have been documented elsewhere. Verify claims thoroughly before declaring something as entirely new to maintain credibility.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "has not previously" functions as an adverbial phrase that modifies a verb, indicating that an action or state is new or unprecedented. As Ludwig AI suggests, it's used to emphasize the novelty of something.
Frequent in
Science
61%
News & Media
25%
Academia
14%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "has not previously" is a grammatically sound and frequently used expression to emphasize the novelty of information or events. As supported by Ludwig AI, its primary function is to indicate that something is being reported or observed for the first time. The expression is commonly found in scientific, news media, and academic contexts. Alternatives such as "has never been" or "is unprecedented" can be used depending on the desired level of formality. When using this phrase, it's essential to ensure that the context genuinely supports the claim of novelty, and that this statement is verified to avoid overstated claims.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
has never been
Emphasizes the absence of something ever occurring, highlighting a lack of prior existence.
hasn't been before
A more informal contraction of "has not been before", conveying the same sense of novelty.
is unprecedented
Indicates that something is entirely new and without historical precedent, implying a stronger sense of uniqueness.
is novel
Focuses on the newness and originality of something, suggesting it's different from what's been seen before.
is unheard of
Suggests that something is surprising or unexpected because it hasn't been experienced or known.
remains unseen
Highlights the lack of visibility or discovery of something until now.
is a first
Simply states that something is occurring for the very first time.
lacks precedent
Emphasizes the absence of a prior example or occurrence, indicating a lack of historical basis.
is ground-breaking
Suggests that something is innovative and creates a new path or approach, differing from what existed earlier.
has no history of
Focuses on the absence of a past record or experience of something, implying it's new in a specific context.
FAQs
How can I rephrase "has not previously" to sound more formal?
For a more formal tone, you could use phrases such as "has not historically", "has not formerly", or "has not hitherto", depending on the specific context.
Is it always necessary to use "has not previously" or are there simpler alternatives?
Simpler alternatives include "has never been" or "is unprecedented", which are often more direct and easier to understand, depending on the audience.
When is it appropriate to use "has not previously" in academic writing?
It's appropriate when introducing a novel finding, methodology, or observation that you can confidently assert "has not previously" been documented or explored in the existing literature.
What's the difference between saying something "has not previously been reported" and saying it "is unreported"?
"Has not previously been reported" emphasizes that prior attempts to document or share the information are absent. "Is unreported" simply indicates that the information is currently undocumented or not yet made public, without specifying if there have been prior efforts.
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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