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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
to be required
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "to be required" is correct and usable in written English.
It can be used when indicating that something is necessary or mandatory in a particular context. Example: "All applicants are to be required to submit their resumes by the end of the week."
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(20)
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
Psychoanalysis seems to be required.
News & Media
Such sophistication is unlikely to be required.
News & Media
We should applaud the effort that's going to be required.
News & Media
"A huge effort is going to be required".
News & Media
A whole new vocabulary seems to be required.
News & Media
To settle any disagreement, a criterion seems to be required.
Encyclopedias
Proof does not seem to be required by Kosovo Serbians.
News & Media
2. A right not to be required to surrender images.
News & Media
"I think these practices are going to be required more".
News & Media
But rapid recapitalization is likely to be required.
News & Media
GTP hydrolysis appears to be required throughout the transport reaction.
Academia
Expert writing Tips
Best practice
Consider replacing "to be required" with stronger verbs like "must", "should", or "need" for a more direct and impactful tone, depending on the context.
Common error
Avoid using "to be required" in sentences where the subject performing the action is unclear or missing, which can lead to confusion. Always specify who is doing the requiring.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "to be required" functions as a passive infinitive, indicating obligation or necessity. Ludwig's examples demonstrate its use in various contexts where something is mandated or essential.
Frequent in
News & Media
35%
Science
30%
Formal & Business
15%
Less common in
Encyclopedias
5%
Wiki
5%
Reference
5%
Ludwig's WRAP-UP
In summary, "to be required" is a versatile phrase used to express necessity or obligation across various domains. As Ludwig AI confirms, it is grammatically correct and commonly used, particularly in news, scientific, and formal business contexts. While alternatives like "to be necessary" or "must" may offer a more direct tone, "to be required" maintains a level of formality suitable for official communications. When using this phrase, ensure clarity regarding the source of the requirement to avoid ambiguity.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
to be necessary
This alternative directly replaces "required" with "necessary", maintaining a similar level of formality and meaning.
to be needed
Substitutes "required" with "needed", implying a slightly less formal necessity.
to be obligatory
Replaces "required" with "obligatory", suggesting a stronger sense of duty or compulsion.
to be compulsory
Similar to "obligatory", this emphasizes a mandatory aspect, often by law or rule.
to be mandatory
This alternative stresses the enforced nature of the requirement.
to be essential
Highlights the critical or indispensable nature of the requirement.
to be imperative
Emphasizes the urgency and importance of the requirement.
to be a must
An informal way of saying something is absolutely required.
to be called for
Indicates that something is appropriate or needed in a particular situation.
to be expected
Suggests that something is normally or logically required given the circumstances.
FAQs
How can I use "to be required" in a sentence?
Use "to be required" when you want to express that something is necessary or mandatory. For example, "All applicants are to be required to submit their resumes by the end of the week."
What phrases can I use instead of "to be required"?
You can use alternatives like "to be necessary", "to be needed", or "to be obligatory depending on the context.
Is it better to use active or passive voice with "to be required"?
While "to be required" is passive, the best choice depends on the context. Use passive voice when the object is more important than the subject, or when the subject is unknown. Use active voice (e.g., "The company requires... ") when you want to emphasize the actor.
What's the difference between "to be required" and "must"?
"To be required" is a more formal and sometimes less direct way of expressing necessity compared to "must". "Must" is stronger and more direct, while "to be required" can sound more bureaucratic or official.
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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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested