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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
which requires
Grammar usage guide and real-world examplesUSAGE SUMMARY
"which requires" is correct and usable in written English.
You might use it in a sentence to introduce a clause that explains what someone or something needs to do in order to get something done. For example: I need to buy a new car, which requires saving money for several months.
✓ 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
60 human-written examples
Which requires constant security.
News & Media
Which requires constant bullshit.
News & Media
Which requires the American troops.
News & Media
Which requires a certain faith.
News & Media
agreement, which requires an austerity program.
News & Media
Not real satire, which requires some modicum of wit.
News & Media
Terms of the purchase, which requires regulatory approval, were undisclosed.
News & Media
An ongoing domestic drama which requires no human cohabitant.
News & Media
It is a serious business which requires serious training".
News & Media
She was a great worrier, which requires an imagination.
News & Media
They are converts to Islam, which requires circumcision.
News & Media
Expert writing Tips
Best practice
When using "which requires", ensure the clause it introduces provides essential information, not just extra detail. If the information is non-essential, use "which requires" inside commas.
Common error
Avoid substituting "that requires" for "which requires" when 'which' introduces a nonrestrictive (nonessential) clause. 'That' should be used for restrictive clauses that are vital to the sentence's meaning.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "which requires" functions as a relative clause connector, introducing a subordinate clause that modifies the preceding noun phrase by specifying a necessary condition or consequence. Ludwig examples illustrate its use in various contexts to explain what is needed for a particular outcome.
Frequent in
Science
30%
News & Media
30%
Formal & Business
20%
Less common in
Wiki
10%
Academia
5%
Encyclopedias
5%
Ludwig's WRAP-UP
In summary, "which requires" is a versatile and grammatically sound phrase used to introduce clauses that specify necessary conditions or consequences. Ludwig AI confirms its correctness and wide applicability. Its frequency is very common across diverse contexts, particularly in science, news media, and formal business settings. When using this phrase, ensure clarity by correctly distinguishing between restrictive and nonrestrictive clauses, and be mindful of its formal tone. Alternatives like "that necessitates" or "necessitating" can be used to achieve different stylistic effects.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
that necessitates
Replaces "which requires" with a more formal synonym, emphasizing the element of necessity.
that entails
Indicates that something is a necessary consequence of something else, similar to "which requires".
necessitating
A more concise way of expressing the need for something, functioning as a participle.
that calls for
Suggests a need or demand for something, maintaining a similar level of formality.
mandating
Implies a formal or legal requirement, adding a stronger sense of obligation.
which demands
Similar to "which requires" but carries a slightly stronger connotation of urgency or insistence.
that makes necessary
A more verbose alternative, emphasizing the cause-and-effect relationship.
that precipitates
Highlights the resulting action as an inevitable outcome.
that compels
Suggests a forced or unavoidable action, indicating less flexibility.
thereby obliging
Formally expresses the creation of an obligation or duty as a result of something.
FAQs
How can I use "which requires" in a sentence?
Use "which requires" to introduce a clause that specifies a necessary condition or consequence. For example, "Solving this problem, "which requires" careful analysis, will take time".
What are some alternatives to using "which requires"?
You can use alternatives like "that necessitates", "that entails", or "necessitating" depending on the context and desired level of formality. "That necessitates" often implies a stronger sense of demand.
Is it correct to say "that requires" instead of "which requires"?
While "that requires" is grammatically acceptable in some contexts, "which requires" is generally preferred for nonrestrictive clauses. If the clause is essential to the sentence's meaning, "that requires" may be more appropriate.
What's the difference between "which requires" and "which demands"?
"Which demands" is a stronger way to phrase it and conveys a sense of urgency compared to "which requires". "The project, "which demands" immediate attention, is now overdue."
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested