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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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which extended for

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "which extended for" is correct and usable in written English.
It can be used to describe the duration or length of something, such as time, distance, or a physical object. Example: "The river, which extended for miles, was a vital source of water for the surrounding communities."

✓ Grammatically correct

News & Media

Encyclopedias

Academia

Human-verified examples from authoritative sources

Exact Expressions

8 human-written examples

They doused the tents, which extended for hundreds of yards in every direction, with gasoline and lighted them on fire.

Indeed, the bill, which extended for five years programs that offer grants and loans to college students, had arrived on the Senate floor with strong bipartisan support.

News & Media

The New York Times

After a period as wife, mother and volunteer, she began her next professional endeavor as an educator which extended for over 20 years at PS130 in Manhattan.

News & Media

The New York Times

To the southwest of the Aurès a fortified zone completed the frontier defensive system, or limes, which extended for a while as far as Castellum Dimmidi (Messad), the most southerly fort in Roman Algeria yet identified.

Encyclopedias

Britannica

They point to AstraZeneca, for example, which extended for years its franchise around the huge-selling heartburn pill Prilosec by slightly altering the chemical structure and renaming the medicine Nexium.

News & Media

The New York Times

Finally, there was the existence of the large Soviet bulge, or salient, around Kursk, between Orël and Belgorod, which extended for about 150 miles from north to south and protruded 100 miles into the German lines.

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Human-verified similar examples from authoritative sources

Similar Expressions

51 human-written examples

"There is a deluge of blood on the street which extends for many metres.

News & Media

The Guardian

Mrs. Castro said the bunkers, which extend for several hundred yards, were "something the public deserves to see".

News & Media

The New York Times

We have u[n-k], which is a unit step going backward in time, but which extends for positive values of n.

Eve Ahlert and Dennis Drake, the screenwriters, have shaken together a canny cocktail of period vernacular and deliberately labored double entendres, some of which extend for entire scenes.

News & Media

The New York Times

The gas industry has argued that vast gas reserves could be found in the Marcellus Shale basin, which extends for roughly 600 miles through Virginia, Ohio, Pennsylvania and New York.

News & Media

The New York Times
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Expert writing Tips

Best practice

When using "which extended for", ensure it clearly connects to the noun it modifies, providing specific information about length, duration, or scope. For example, "The agreement, which extended for five years, provided stability to the market."

Common error

Avoid ambiguity by ensuring the "which" clearly refers to a specific noun. Incorrect: "The project included several phases, which extended for many months, causing confusion." Correct: "The project, which extended for many months, included several phases and caused confusion."

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

82%

Authority and reliability

4.3/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "which extended for" functions as a relative clause, modifying a noun by providing additional information about its duration, length, or scope. Ludwig AI's analysis of various examples shows it consistently introduces details about the extent of something.

Expression frequency: Uncommon

Frequent in

News & Media

32%

Encyclopedias

28%

Academia

20%

Less common in

Science

12%

Wiki

8%

Formal & Business

0%

Ludwig's WRAP-UP

In summary, the phrase "which extended for" is a grammatically sound relative clause used to provide additional descriptive information about a noun's length, duration, or scope. While not exceedingly common, it is considered correct for use in a wide array of contexts, including news, encyclopedias, and academic writing. Ludwig AI’s analysis indicates that this phrase serves to add precision and clarity by specifying the range or duration of what is being described. When using the phrase "which extended for", pay close attention to the clarity and the intended subject of modification in order to avoid ambiguity. Keep in mind, you can also use alternatives depending on the context, such as "that stretched across" or "that spanned over".

FAQs

How can I use "which extended for" in a sentence?

Use "which extended for" to describe the length, duration, or scope of something in a relative clause. For example, "The hiking trail, which extended for five miles, offered beautiful views."

What are some alternatives to "which extended for"?

You can use alternatives such as "that stretched across", "that spanned over", or "that continued for" depending on the context.

How does "which extended for" differ from "which lasted for"?

"Which extended for" often implies a spatial or temporal dimension, while "which lasted for" typically refers to a duration of time. For example, a road extends, while a meeting lasts.

Is it always necessary to use "which" with "extended for"?

While "which" introduces a nonrestrictive clause providing additional information, you can use "that" for restrictive clauses that are essential to the sentence's meaning. However, "which extended for" is more common in formal writing.

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Source & Trust

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Authority and reliability

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Real-world application tested

Most frequent sentences: