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
on countless nights
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "on countless nights" is correct and can be used in written English.
It is typically used to convey the idea of something happening repeatedly or frequently at different times in the past. For example: "On countless nights, I have stayed up late trying to finish my project." "I have been to that restaurant on countless nights and I still can't get enough of their food." "The street performer has mesmerized audiences on countless nights with his incredible guitar skills."
✓ Grammatically correct
News & Media
Science
Alternative expressions(2)
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
3 human-written examples
On countless nights, he and close friends would retreat to his mansion's "playroom" — a high-tech incarnation of the home disco he built as a child.
News & Media
For instance, he remembers a man in the gray minivan who drove through on countless nights with a chicken on his lap.
News & Media
The number of kicks and jabs to the ribs I experienced while I lay awake on countless nights.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
56 human-written examples
On other countless nights, Ms. Eaton would have heard the cacophony and seen the fender-bending results of vehicle collisions at my corner, followed shortly by the sirens of arriving police cars.
News & Media
Berle became "Mr. Television" by recycling the detritus of his countless nights on a vaudeville road that had vanished years earlier: slam-bang Smith-and-Dale-style sketch comedraggarishenanigansnanigans out of "Charley's Aunt," smart-alecky insult humor.
News & Media
After their day jobs, the directors spent countless nights editing on the computer.
News & Media
My best friend was the campus dealer, so I spent countless nights smoking spliffs on his dorm room floor and watching his clients stumble in and out.
News & Media
Despite his fully filled work schedule in administration, he held on to his own fungal research at countless nights until dawns and in holidays.
Science
My family dined there on countless Friday nights throughout my childhood.
News & Media
Now, in Spain, in the biggest test of all, he needed every vestige of the single-mindedness he had honed over long years of international competition and on countless glamorous nights at that simple training ground.
News & Media
On countless late nights, Corine Borgnet, an artist, could be seen through a window on the other side of that door, feverishly studying and sorting the hundreds of old notes that, despite the improbable odds, her neighbors in the East Village had stuffed through her slot.
News & Media
Expert writing Tips
Best practice
Use "on countless nights" to vividly portray repeated experiences or occurrences that happened across many different nights, emphasizing the sheer number of times.
Common error
Avoid using "on countless nights" when you mean something happened every night consecutively. "Night after night" would be more appropriate for consecutive occurrences.
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "on countless nights" functions as an adverbial phrase, modifying a verb or clause by specifying when and how often an action occurred. Ludwig examples show its use to describe repeated experiences or habits.
Frequent in
News & Media
67%
Science
33%
Formal & Business
0%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "on countless nights" is a grammatically sound and commonly used expression that functions as an adverbial phrase to emphasize the repeated occurrence of an event across many evenings. According to Ludwig, the phrase is prevalent in news and media and scientific contexts. When using this phrase, ensure it accurately conveys a non-specific yet frequent repetition, rather than a consecutive nightly occurrence. Consider alternatives like "on numerous nights" or "during countless nights" for slight variations in emphasis.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
on numerous nights
Replaces "countless" with "numerous", suggesting a large but not necessarily infinite number of nights.
during countless nights
Substitutes "on" with "during", slightly alters the emphasis on the period when the event occurred.
through countless nights
Similar to "during", but may imply a more continuous or ongoing action over the nights.
over countless nights
Emphasizes a period spanning across many nights.
on innumerable nights
Replaces "countless" with "innumerable", offering a more formal synonym.
through endless nights
Replaces "countless" with "endless", highlighting the seemingly infinite nature of the nights.
on many a night
An older, more literary way of saying "on many nights".
during a multitude of nights
More verbose alternative to "on countless nights".
on a vast number of nights
Expands on the idea of "countless" with a more descriptive phrase.
night after night
Implies a consecutive repetition of events, differing from the non-specific repetition of "countless nights".
FAQs
How can I use "on countless nights" in a sentence?
Use "on countless nights" to describe something that has happened repeatedly over many different nights, emphasizing the frequency. For example, "On countless nights, I've stayed up late working on this project".
What are some alternatives to "on countless nights"?
You can use alternatives like "on numerous nights", "during countless nights", or "night after night" depending on the specific context and nuance you wish to convey.
Is it better to say "on countless nights" or "during countless nights"?
Both "on countless nights" and "during countless nights" are grammatically correct and convey a similar meaning. The choice between them often comes down to stylistic preference or the specific rhythm of the sentence.
What's the difference between "on countless nights" and "every night"?
"On countless nights" suggests a high frequency of occurrence without implying that it happened every single night. "Every night" means it happened without fail, each and every night.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
89%
Authority and reliability
4.5/5
Expert rating
Real-world application tested