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
to be necessary
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "to be necessary" is correct and usable in written English.
You can use it when something needs to be done in order for something else to occur. For example, "It is necessary to adhere to the rules in order to pass the course."
✓ 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
54 human-written examples
"Wheels are going to be necessary".
News & Media
And we understand them to be necessary".
News & Media
The dream had ceased to be necessary.
News & Media
But it doesn't have to be necessary.
News & Media
"The documentation I find to be necessary.
News & Media
Neither turned out to be necessary.
News & Media
It's understood by the police to be necessary".
News & Media
Such radical measures turned out not to be necessary.
News & Media
No other rules are said to be necessary.
News & Media
"I believe experience has shown them to be necessary.
News & Media
It's only necessary if you want it to be necessary.
News & Media
Expert writing Tips
Best practice
Use "to be necessary" when indicating an action, condition, or element is required for a specific outcome or purpose. Ensure the context clearly establishes why the necessity exists.
Common error
Avoid overusing "to be necessary" in passive constructions where active voice would be more direct and impactful. For instance, instead of "The report was felt to be necessary by the committee", consider "The committee felt the report was necessary".
Source & Trust
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "to be necessary" primarily functions as a predicate adjective within an infinitive phrase. It describes a condition or action that is required or essential for a specific purpose or outcome. Ludwig AI confirms this usage through numerous examples across diverse contexts.
Frequent in
News & Media
35%
Science
35%
Formal & Business
15%
Less common in
Encyclopedias
5%
Reference
5%
Wiki
5%
Ludwig's WRAP-UP
In summary, the phrase "to be necessary" is a grammatically sound and versatile expression used to convey the requirement or essential nature of an action, condition, or element. Predominantly found in neutral to formal registers across news, scientific, and business contexts, it serves to communicate that something is indispensable for a specific outcome. Ludwig AI affirms its proper usage through a wealth of examples. When aiming for direct and impactful communication, consider using active voice constructions or exploring alternatives like "to be required" or "to be essential".
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
to be required
Indicates a formal obligation or need; it implies a rule or standard enforces the necessity.
to be essential
Emphasizes the fundamental importance of something, suggesting it is indispensable.
to be vital
Highlights the critical nature of something, often implying that its absence would have severe consequences.
to be indispensable
Stresses that something is absolutely necessary and impossible to do without.
to be crucial
Suggests that something is decisive or pivotal, often at a critical juncture.
to be obligatory
Indicates a legal or moral requirement, emphasizing a binding duty.
to be unavoidable
Implies that something cannot be prevented or escaped, suggesting a necessity imposed by circumstances.
to be imperative
Highlights the urgent and pressing nature of something, demanding immediate attention.
to be compulsory
Indicates that something is mandated by law or regulation, typically in formal settings.
to be paramount
Emphasizes the supreme importance or priority of something, placing it above all else.
FAQs
How can I use "to be necessary" in a sentence?
Use "to be necessary" to indicate something is required or essential. For example, "It is felt "to be necessary" to review the data before making a decision".
What are some alternatives to "to be necessary"?
You can use alternatives such as "to be required", "to be essential", or "to be vital" depending on the context.
Is it better to say "is necessary" or "to be necessary"?
The choice depends on the sentence structure. "Is necessary" is used when it directly follows the subject, while "to be necessary" is used in infinitive phrases or after auxiliary verbs. For example, "This step is necessary" versus "This step needs to be necessary".
What's the difference between "necessary" and "essential"?
"Necessary" indicates something is needed for a specific purpose or outcome, while "essential" implies something is fundamentally important or indispensable. Something essential is always necessary, but something necessary is not always essential.
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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
89%
Authority and reliability
4.6/5
Expert rating
Real-world application tested