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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
any time must
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "any time must" is not correct and does not convey a clear meaning in written English.
It may be intended to express a necessity or requirement related to time, but it lacks clarity and proper grammatical structure. Example: "Any time must be scheduled for the meeting" would be clearer as "Any time must be scheduled for the meeting."
⚠ May contain grammatical issues
Science
News & Media
Wiki
Alternative expressions(1)
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
The qualifying phrase "or what we have always esteemed such" means that Emerson does not embrace an easy relativism, according to which what is taken to be a virtue at any time must actually be a virtue.
Science
As a result, all wireless nodes powered by renewable energy are subject to the EH constraints over time, i.e., the total energy consumption up to any time must be less than the energy harvested by that time.
And, "The conduct of all activities by all persons representing the corporation in any way, at any time, must be right and proper".
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
Estimates on the absolute population of elephants at any given time must be taken with a grain of salt, he says, but overall trends seen over years of sampling the same areas in a standardized way are generally more accurate.
Science & Research
Thus, the observed differences of net fluid transport across the vascular wall at any one time must reflect differences in hydraulic conductivity (that is, in the integrity of the double barrier composed of the endothelial glycocalyx and the endothelial cells).
Science
The amount of blood returning to the heart in any period of time must be equal to the amount of blood pumped by the heart in the same period, as there is no place for storage of blood in the heart.
Science
Now just as any point on a circle is both a beginning and ending of some arc on the circle, so any moment assumed in time must be a beginning and ending of some period of time.
Science
Any student arriving after that time must be walked into the building and signed in at the office.
News & Media
Fans should also bear in mind that the number that appears on the board only shows the minimum time to play: any stoppages during that added time must also be taken into account.
News & Media
The likelihood that the American political classes will call a halt any time soon must be close to zero.
News & Media
"In the United States," Mr. Kappe observed, "waiters can be fired at any time and must work for tips, so they have to be nice.
News & Media
Expert writing Tips
Best practice
When expressing a requirement related to time, use clearer constructions such as "must happen at some point", or replace the modal verb "must" with alternatives like "should", "needs to", or "is required to" for improved grammatical accuracy.
Common error
Do not directly combine "any time" with "must" as it often results in unclear or grammatically unsound sentences. Instead, rephrase to specify the condition or action that is necessary.
Source & Trust
81%
Authority and reliability
2.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "any time must" functions as a determiner followed by a modal verb, attempting to express obligation or necessity regarding timing. As Ludwig AI confirms, it is grammatically incorrect.
Frequent in
News & Media
40%
Science
40%
Wiki
20%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "any time must" is grammatically incorrect and lacks a clear, coherent meaning in standard English, as also confirmed by Ludwig AI. While it appears across varied sources, its usage is inconsistent and not recommended. To express necessity related to time, it's better to use more direct and grammatically correct alternatives, such as "must occur at some point" or "is required at any given moment". These alternatives enhance clarity and precision in writing, avoiding the ambiguity associated with "any time must".
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
must occur at some point
Replaces "any time" with a more specific indicator of timing while retaining the sense of necessity.
is required at any given moment
Emphasizes the necessity at a specific point in time, adding formality.
should happen at some stage
Replaces "must" with a softer obligation, maintaining the temporal aspect.
has to be done at a certain moment
Specifies the obligation more directly, indicating a particular time.
needs to occur eventually
Indicates the necessity and that it has to be done at some point, with eventual timing.
is bound to occur sooner or later
Suggests inevitability over a period of time.
will inevitably happen
Replaces the modal verb "must" to emphasize certainty about the occurrence.
has to take place at some future point
Highlights the future aspect and requirement to happen.
should be scheduled at a convenient time
Replaces the necessity and introduces a scheduling aspect to time.
may be needed at any hour
Softens the obligation while emphasizing the unpredictability of timing.
FAQs
What does "any time must" mean?
The phrase "any time must" is grammatically incorrect and doesn't have a clear meaning in English. It's usually rephrased to convey a necessity or requirement related to a specific or unspecified time.
How can I correctly use the idea I'm trying to express with "any time must"?
Instead of "any time must", try using phrases like "must occur at some point" or "is required at any given moment" to express a necessity related to time more clearly.
Is "any time must" grammatically correct?
No, "any time must" is not grammatically correct. English grammar typically requires a different structure to properly convey the intended meaning of necessity related to time. Refer to Ludwig AI explanations for the proper usage of the words "any time" and "must".
What are some alternatives to "any time must" that I can use in my writing?
Depending on the context, consider using phrases such as "should happen at some stage", "has to be done at a certain moment", or "needs to occur eventually" to express the intended meaning with better clarity.
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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
2.1/5
Expert rating
Real-world application tested