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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
on any days
Grammar usage guide and real-world examplesUSAGE SUMMARY
"on any days" is a correct and usable phrase in written English.
It is typically used in questions or statements of general intent. For example, you might say, "I'm available on any days."
✓ Grammatically correct
Science
News & Media
Wiki
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
5 human-written examples
He pointed to an aging wooden crate which bore the legend NO PARKINGS OF ANY VEHICLE ON ANY DAYS.
News & Media
The second alcohol measure related to binge drinking and was assessed by responses to the question, 'During the past 30 days, on how many days, if any, did you have five or more drinks of alcohol in a row, that is, within a couple of hours?' Responses were dichotomised to represent those who had engaged in binge drinking on one or more days and those who did not binge drink on any days.
Science
Once you've signed up, you have to play within 28 days on any days where the hunt is stated as being available to play.
News & Media
In vehicle-treated animals, the withdrawal thresholds of the uninjured paw (contralateral to paw incision) did not significantly differ from baseline values on any days tested (p>0.05).
Science
Thick blood films and blood onto filter paper samples were made on Days 0, 2, 3, 7, 14, 21, 28, and on any days of recurrent illness.
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
If on any day, one is unable to don their tefillin for Shacharit, one may do so at any other time of day during daylight hours.
Wiki
No one wants to step in dog waste, either on Halloween or on any day.
Wiki
Any team can win on any day..
News & Media
"That can happen on anyone on any day.
News & Media
"That can happen on any day," Williams said.
News & Media
(Smith is equally irritable and quotable on any day, in any decade.
News & Media
Expert writing Tips
Best practice
When using "on any days", ensure the context clearly indicates a general availability or lack of restriction across multiple days. For instance, specify "available on any days except Sundays" to clearly communicate availability.
Common error
Avoid using "on any days" when you intend to refer to a specific day. Using "on any days" in reference to only one day makes the expression too ambiguous, so rather specify the day. For example, instead of "contact me on any days this week", say "contact me on Monday" if that is your intention.
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "on any days" primarily functions as an adverbial phrase of time, modifying a verb or clause to indicate when an action occurs. It specifies a period encompassing multiple days without specifying particular dates. Ludwig AI considers it a correct phrase.
Frequent in
News & Media
33%
Science
33%
Wiki
33%
Less common in
Formal & Business
0%
Encyclopedias
0%
Academia
0%
Ludwig's WRAP-UP
In summary, the phrase "on any days" is a grammatically sound and usable phrase in English, though Ludwig considers it to be a relatively rare. It acts as an adverbial phrase denoting general availability or a lack of restriction across multiple unspecified days. While its register is generally neutral, it appears across diverse source types including news, scientific publications, and wikis. When employing this phrase, clarity is key: be specific about the context and time frame to avoid any potential ambiguity.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
on any given day
Focuses on a single, unspecified day rather than a general set of days.
on all days
Emphasizes every single day without exception.
on every day
Similar to 'on all days', stressing the daily occurrence.
during any days
Highlights that the action occurs within a period of multiple days.
throughout any days
Emphasizes the continuous nature of an action across multiple days.
on some days
Indicates that the action happens only on a selection of days, not all.
on particular days
Highlights specific, chosen days.
on whichever days
Indicates a choice of days, leaving the selection open.
at any time of day
Shifts focus to the time within a day, rather than specific days.
during any period
Expands the timeframe from specific days to any length of time.
FAQs
How can I use "on any days" in a sentence?
You can use "on any days" to indicate availability or a lack of restrictions across multiple days. For example: "The park is open to the public on any days except national holidays".
What does "on any days" mean?
"On any days" means that something is applicable or available without restriction across multiple unspecified days.
Which is more appropriate, "on any day" or "on any days"?
Use "on any day" when referring to a single, unspecified day. Use "on any days" when referring to multiple unspecified days. For example: "You can arrive "on any day"" versus "We are open "on any days" of the week".
What phrases are similar to "on any days"?
Similar phrases include "on any given day", "on all days", or "on every day". The choice depends on the specific nuance you want to convey.
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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
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested