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
must supply
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "must supply" is correct and usable in written English.
It can be used when indicating a requirement or obligation to provide something. Example: "All participants must supply their contact information before the event."
✓ Grammatically correct
News & Media
Science
Encyclopedias
Alternative expressions(19)
must provide
is required to provide
must submit
needs to give
is required to receive
is required to sleep
is required to listen
is required to attend
is required to rule
is required to demonstrate
is required to save
is required to have
is required to live
is required to produce
is required to operate
is required to tend
is required to organize
is required to hand
is required to win
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
They must supply it with important information.
News & Media
The group, of course, must supply the fans.
News & Media
The reader must supply what he does not understand.
News & Media
(For breast enlargements, patients must supply their own implants).
News & Media
This is a family newspaper, so you must supply your own jokes here.
News & Media
These moments are the data for which faith must supply a hypothesis.
News & Media
If one does not understand it so well, he must supply an incomplete model for explanation.
News & Media
To answer according to the rules of grammar, we must supply a noun, a thing.
News & Media
The respondents must supply a written proposal that details their candidates' worthiness.
Encyclopedias
(Riviera Maya will provide the drink setups but not the alcohol, which you must supply).
News & Media
In these cases the reactor must supply heat in order to maintain a practical reaction rate.
Encyclopedias
Expert writing Tips
Best practice
When using "must supply", ensure that the context clearly indicates what is being supplied and to whom or what it is being supplied. This avoids ambiguity and strengthens the clarity of your writing.
Common error
Avoid using "must supply" in overly casual situations where a more relaxed phrasing like "needs to give" or "has to provide" would be more appropriate.
Source & Trust
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "must supply" functions as a modal verb phrase indicating an obligation or necessity to furnish something. This construction emphasizes a requirement, as seen in examples from Ludwig where entities or individuals are compelled to provide specific items or information.
Frequent in
News & Media
42%
Science
32%
Encyclopedias
8%
Less common in
Wiki
5%
Formal & Business
5%
Social Media
0%
Ludwig's WRAP-UP
In summary, the phrase "must supply" is a grammatically sound and frequently used construction that signifies a requirement to provide something. As confirmed by Ludwig AI, its usage spans various contexts, including news, science, and encyclopedic content, generally maintaining a professional tone. While alternatives exist, such as "is required to furnish", the choice depends on the specific nuance and formality desired. When employing "must supply", ensure clarity regarding what is being supplied and to whom, while avoiding overuse in excessively informal scenarios.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
is required to furnish
Changes the verb to "furnish" making it slightly more formal while maintaining the meaning of providing something necessary.
is obligated to provide
Replaces "must supply" with a more explicit phrase emphasizing obligation.
is essential to give
Highlights the critical importance of providing something.
is bound to deliver
Suggests a formal agreement or commitment to provide something.
is compelled to offer
Emphasizes a strong external pressure or force to provide something.
has to contribute
Implies providing a share or part of something necessary.
is duty-bound to yield
Implies a moral or ethical obligation to provide something.
needs to allocate
Focuses on setting aside or designating resources.
is expected to yield
Suggests a certain expectation or anticipation about the provision of something.
should allocate
Less forceful than "must", suggesting a recommendation or expectation.
FAQs
How to use "must supply" in a sentence?
The phrase "must supply" indicates a requirement or obligation to provide something. For example, "Applicants "must supply" their licenses with their applications" means it's mandatory for applicants to provide their licenses.
What can I say instead of "must supply"?
You can use alternatives like "is required to furnish", "is obligated to provide", or "has to contribute" depending on the context.
Which is correct, "must supply" or "should supply"?
"Must supply" indicates a strict requirement, while "should supply" suggests a recommendation or expectation. The choice depends on whether the provision is mandatory or merely advisable.
What's the difference between "must supply" and "must provide"?
While "must provide" and ""must supply"" are very similar, "must supply" often implies providing something tangible or specific, whereas "must provide" can be more general. However, in many contexts, they are interchangeable.
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
86%
Authority and reliability
4.6/5
Expert rating
Real-world application tested