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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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which requires

Grammar usage guide and real-world examples

USAGE 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

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Which requires constant security.

Which requires constant bullshit.

Which requires the American troops.

News & Media

The New York Times

Which requires a certain faith.

agreement, which requires an austerity program.

News & Media

The New York Times

Not real satire, which requires some modicum of wit.

Terms of the purchase, which requires regulatory approval, were undisclosed.

News & Media

The New York Times

An ongoing domestic drama which requires no human cohabitant.

News & Media

The New Yorker

It is a serious business which requires serious training".

News & Media

The New York Times

She was a great worrier, which requires an imagination.

News & Media

The New Yorker

They are converts to Islam, which requires circumcision.

News & Media

The New York Times
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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.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

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.

Expression frequency: Very common

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.

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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Source & Trust

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Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: