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 claim
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "must claim" is correct and usable in written English.
It can be used when indicating a necessity or obligation to assert or declare something. Example: "In order to receive your benefits, you must claim them within the specified time frame."
✓ Grammatically correct
News & Media
Science
Formal & Business
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
58 human-written examples
The state not only does but must claim to speak in the name of those it coerces; rulers of a state could not avoid the moral implications that flow from this claim by explaining that they are just authoritarian rulers, bosses who command state power and plan to rule for their own personal benefit.
Science
This is the revolutionary spirit that we must claim again for ourselves -- fast -- if we are to save the country.
News & Media
For example, in order to explain how the meaning of tomato can be the same for two speakers, conceptual-role semantics must claim that the word plays the same conceptual role in the two speakers' mental lives.
Encyclopedias
We must claim its promise.
News & Media
Capitalism must claim its scalps.
News & Media
You must claim your bonus by 2030.
News & Media
But pensioners must claim for this entitlement.
News & Media
Now let's look at the adults who must claim responsibility.
News & Media
Most important, Labour must claim the mantle of self-government.
News & Media
Parents must claim and 1 million have not.
News & Media
It states that refugees must claim asylum in the first country they arrive in Europe.
News & Media
Expert writing Tips
Best practice
Use "must claim" when you want to express a strong obligation or necessity to assert something, especially when referring to rules, laws, or duties. Ensure the context supports this level of obligation.
Common error
Avoid using "must claim" when a less forceful expression, such as "should state" or "needs to mention", would be more appropriate. Overusing "must claim" can make your writing sound overly assertive or even aggressive in situations where a softer tone is preferred.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "must claim" functions as a modal verb phrase expressing obligation or necessity. It indicates that someone is required to assert or declare something. As evidenced by Ludwig, this phrase is commonly found in contexts where rules, regulations, or formal procedures are discussed.
Frequent in
News & Media
57%
Science
23%
Formal & Business
20%
Less common in
Encyclopedias
1%
Reference
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "must claim" is a modal verb phrase that signifies a strong obligation or necessity to assert or declare something. According to Ludwig, it is grammatically correct and frequently used, particularly in news and media, scientific, and formal business contexts. While versatile, it's important to use it judiciously, ensuring that the context aligns with the strong sense of obligation it conveys. For milder assertions, alternatives like "should assert" or "needs to mention" may be more fitting. This phrase is not used in informal situations.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
have to assert
Expresses a necessity or requirement to state something firmly.
need to declare
Indicates a need or necessity to formally announce or state something.
are required to assert
Indicates a formal obligation or requirement to make a declaration.
it is essential to assert
Highlights the crucial or indispensable nature of making a declaration.
are obliged to declare
Emphasizes a formal duty or compulsion to state something.
are compelled to state
Indicates an external force or pressure to make a statement.
it is imperative to declare
Stresses the urgent or critical need to formally announce something.
should assert
Suggests a recommendation or advisability to state something confidently.
are bound to profess
Implies a strong moral or legal obligation to declare something.
are forced to allege
Suggests that the subject is unwillingly making the claim.
FAQs
How can I use "must claim" in a sentence?
The phrase "must claim" is used to express a strong necessity or obligation to assert something. For example, "To receive the tax credit, you "must claim" it on your tax return."
What are some alternatives to "must claim"?
Alternatives to "must claim" include "are required to assert", "need to declare", or "have to assert", depending on the specific nuance you want to convey.
When is it appropriate to use "must claim"?
It's appropriate to use "must claim" when there is a strong obligation, legal requirement, or imperative need to assert or declare something. For example, in legal documents or formal instructions.
Is "must claim" more formal than "should claim"?
Yes, "must claim" is generally more formal and conveys a stronger sense of obligation than "should claim", which suggests a recommendation or advisability rather than a strict requirement.
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
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested