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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
in which while
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "in which while" is correct and usable in written English.
You can use it to introduce a subordinate clause, usually after a main clause. For example: "The room was full of books, in which while I was browsing I stumbled across a rare edition."
✓ Grammatically correct
News & Media
Science
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
37 human-written examples
Mr. McMahon described several occasions in which, while serving as Enron's treasurer, he challenged the partnerships only to incur sharp criticism from his boss, Mr. Fastow.
News & Media
In a world in which, while Christmas thrives, winter itself is under threat from global warming, imparting to the generation which comes after us a sense of the season's true majesty feels all the more vital.
News & Media
The piece came to him as a flash of inspiration in a dream "in which, while driving down Interstate Route 5, I was approached from behind by two long, gleaming, black stretch limousines.
News & Media
In a talk I had with him not long ago, I asked him what some of the ways were in which, while living in New York, he remained in touch with his background.
News & Media
Frisky allegro steps also dominated a dance from the Pacific region in which, while exchanging hats, four couples kept dodging one another as if playing a game of tag.
News & Media
She also loves the tragico-instructive tale "Should I Share My Ice Cream?," in which, while the protagonist deliberates extensively about the ethical and gustatory implications of sharing, his beloved ice cream melts, unnoticed.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
23 human-written examples
This is in stark contrast to the controversial Feed-in Tariff which, while it may have given the Treasury boys sleepless nights, actually brought about a small revolution.
News & Media
Apple created the concept video for their "Knowledge Navigator" tablet in 1987, which, while dated in aesthetic, successfully predicted the company's role in the development of tablet computers decades later.
News & Media
It must have worked, because he next was cast in Arrested Development which, while famously anaemic in terms of ratings, was deemed a groundbreaking American comedy by critics and cult fans.
News & Media
When present, the data usually considers pharmacists acceptance and confidence in nurses in prescribing roles, which while in a number of instances positive, may suffer from insufficient understanding of primary care nursing roles [ 16].
Science
Females are totally unaffected by loss of the three tandem STE24 orthologs, but males show a sharp reduction in fertility, which, while fully penetrant, varies in expressivity.
Science
Expert writing Tips
Best practice
While grammatically correct, consider whether the phrase "in which while" is the most concise and clear option for your sentence. Often, simpler alternatives like "where while" or "during which" can improve readability.
Common error
Avoid using "in which while" when "in which" or "while" alone sufficiently conveys the intended meaning. Redundancy can make your writing sound less professional and more convoluted.
Source & Trust
88%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "in which while" functions as a conjunctive phrase introducing a subordinate clause that describes a condition or circumstance simultaneous to the main clause's action or state. According to Ludwig AI, it's grammatically correct to use in writing.
Frequent in
News & Media
67%
Science
28%
Encyclopedias
5%
Less common in
Formal & Business
0%
Academia
0%
Reference
0%
Ludwig's WRAP-UP
The phrase "in which while" is grammatically sound, functioning as a conjunctive phrase to introduce subordinate clauses, and is often employed to provide simultaneous contextual details. Although considered correct, as indicated by Ludwig AI, it is crucial to evaluate if it offers the most succinct phrasing. Predominantly featured in news and media, scientific, and encyclopedic contexts, this construct leans towards a neutral-to-formal register. When wielding "in which while", writers should be mindful of potential redundancies and opt for brevity when suitable alternatives like "during which" or "where while" suffice.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
where while
Replaces "in which" with the simpler "where", maintaining the simultaneous condition indicated by "while".
during which
Similar to "during which time" but shorter, focusing on the temporal aspect.
during which time
Focuses on the temporal aspect of the situation, highlighting the period when something else is happening.
while in
A simpler construction, which may be suitable depending on the specific context.
as
Offers a more concise way to indicate simultaneity or a condition, depending on context.
whilst
A more formal synonym for "while", which can replace "in which while" in some contexts.
as it
Emphasizes the action simultaneously occurring
in the process of
Highlights the ongoing nature of an action or event.
at the same time as
Emphasizes the simultaneous occurrence of two events.
in that time
Expresses a time frame in which actions are performed.
FAQs
How can I use "in which while" in a sentence?
The phrase "in which while" is used to introduce a clause that provides additional information about a situation or action. For example, "The study involved a scenario in which while participants completed a task, their brain activity was monitored."
What phrases are similar to "in which while"?
You can use alternatives like "where while", "during which", or "as", depending on the context.
Is it better to use "in which" or "in which while"?
While "in which while" is grammatically correct, "in which" is often more concise and preferred. Consider the specific nuance you want to convey; if the "while" adds a necessary sense of simultaneity, then "in which while" is appropriate. Otherwise, "in which" is sufficient.
What are the common mistakes when using "in which while"?
A common mistake is using "in which while" redundantly when either "in which" or "while" alone would be sufficient. Always aim for clarity and conciseness in your writing; avoid unnecessary wordiness.
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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
4.1/5
Expert rating
Real-world application tested