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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
must determine
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "must determine" is correct and usable in written English.
It can be used when indicating a necessity to find out or establish something. Example: "In order to proceed with the project, we must determine the budget and resources required."
✓ 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
59 human-written examples
Realities on the ground must determine strategy.
News & Media
He or she must determine the governess's guilt or innocence.
News & Media
Under current law, Congress must determine any increases.
News & Media
Before signing up, users must determine whether a service carries games for their consoles.
News & Media
But before any rush to judgment, the National Transportation Safety Board must determine what happened.
News & Media
Most important, it must determine whether Dr. Holsinger holds these benighted views today.
News & Media
There, you must determine, based on mood and skin tone, what's right for you.
News & Media
The Bureau of Prisons must determine what care Mr. Gigante needs, the judge ruled.
News & Media
Your lawyer must determine the status of your debt on the property.
News & Media
The investigation must determine whether those procedures were followed and if not, why not.
News & Media
Ultimately, Toyota must determine "do people want to plug in their car?" Ms. Chitwood said.
News & Media
Expert writing Tips
Best practice
Use "must determine" when emphasizing a necessary action to find out or establish a fact, decision, or outcome. Ensure the context clearly indicates why the determination is essential.
Common error
Avoid using "must determine" in casual conversation or informal writing. Opt for more relaxed alternatives like "need to find out" or "have to decide" to maintain a natural tone.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "must determine" functions as a modal verb phrase indicating a strong necessity or obligation to ascertain or establish something. As confirmed by Ludwig, it's typically used to express that a specific action of finding out or deciding is required.
Frequent in
News & Media
40%
Science
35%
Formal & Business
15%
Less common in
Encyclopedias
5%
Reference
3%
Wiki
2%
Ludwig's WRAP-UP
In summary, the phrase "must determine" is a modal verb phrase that signifies a strong necessity to find out or establish something. Ludwig confirms its grammatical correctness and usability in various contexts. Predominantly found in News & Media and Science, it maintains a formal or professional tone. When writing, use "must determine" to emphasize critical actions, and consider alternatives like "need to ascertain" or "have to establish" for similar but slightly less forceful expressions.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
need to ascertain
Emphasizes a need for certainty and accuracy in finding something out.
have to establish
Highlights the obligation or requirement to establish something as a foundation.
are required to find out
Stresses the formal requirement to discover specific information.
should resolve
Indicates a recommendation or expectation to settle or make a decision about something.
ought to identify
Implies a moral or logical obligation to recognize or point out something.
should clarify
Suggests the need to make something clearer or more understandable.
need to clarify
Highlights the necessity to make something clearer or more understandable.
are expected to resolve
Indicates an anticipation to settle or make a decision about something.
should pinpoint
Implies the need to precisely identify or locate something.
need to pinpoint
Highlights the necessity to precisely identify or locate something.
FAQs
How can I use "must determine" in a sentence?
Use "must determine" to express the necessity of finding something out or reaching a decision. For example, "The committee must determine the eligibility criteria before accepting applications."
What are some alternatives to "must determine"?
You can use alternatives like "need to ascertain", "have to establish", or "should resolve" depending on the specific context and level of formality.
When is it appropriate to use "must determine"?
"Must determine" is appropriate in formal writing, legal contexts, or situations where establishing a fact or making a decision is essential. It is commonly found in news reports, scientific papers, and official documents.
Is "must determine" interchangeable with "should determine"?
While both phrases suggest a need for determination, "must determine" indicates a stronger obligation or necessity than "should determine". Use "must" when the determination is critical or legally required, and "should" when it is advisable but not mandatory.
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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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested