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 quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

MitStanfordHarvardAustralian Nationa UniversityNanyangOxford

could have extended

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "could have extended" is correct and usable in written English.
It is typically used to express a possibility or hypothetical situation in the past regarding an extension of time, space, or another concept. Example: "If we had more resources, we could have extended the deadline for the project."

✓ Grammatically correct

News & Media

Encyclopedias

Science

Human-verified examples from authoritative sources

Exact Expressions

58 human-written examples

"It could have extended to the building.

News & Media

The New York Times

Or an old manager or record company could have extended the copyright without asking," he says.

China's control of South Asian waters could have extended to a landing in Australia in the early 15th century.

But he will play, and Adelman said he could have extended minutes on nights the team responded to his creativity.

Meanwhile Boro's Dimi Konstantopoulos was only really tested by a weak shot from Joe Lolley and Adomah could have extended the home lead on the counterattack.

For example, someone could have extended @replies or hearts to things or places or songs or whatever, not just Tweets and Twitter accounts.

News & Media

The Guardian

The gusty winds and messy field forced Groh to pass up two first-half field-goal opportunities from Detroit's 36-yard line that could have extended the lead.

The last survivor here who could have extended this sequence was the 17-year-old Czech Nicole Vaidisova, who lost to Kuznetsova in the semi-finals.

"We've been unlucky in front of goal and we could have extended our lead, but in fairness, there was only going to be one winner.

For all that, Oakland could have extended Giambi for six years last March, but refused to give him a no-trade clause.

He missed several putts from 12 to 14 feet that could have extended his lead, but he liked his chances as well as anyone's.

Show more...

Expert writing Tips

Best practice

Use "could have extended" to express a hypothetical past action that would have resulted in something being longer, larger, or more prolonged. Ensure the context clearly indicates what would have been extended and under what conditions.

Common error

Avoid using "could have extended" when the context requires a different tense or a more direct statement of fact. For instance, if the extension actually happened, use "extended" instead of "could have extended".

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

85%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "could have extended" functions as a modal verb phrase indicating a hypothetical possibility in the past. It suggests that an action of extending something was possible but did not occur. Ludwig AI confirms this usage across numerous contexts.

Expression frequency: Very common

Frequent in

News & Media

60%

Science

20%

Encyclopedias

10%

Less common in

Formal & Business

3%

Wiki

3%

Reference

4%

Ludwig's WRAP-UP

In summary, "could have extended" is a versatile phrase used to express a past possibility of prolonging or expanding something. Ludwig AI identifies it as grammatically sound and prevalent across varied sources like news, science, and encyclopedias. While seemingly straightforward, nuances exist; choosing between "could have", "would have", or "should have" is essential for conveying the correct meaning. Common errors involve misuse of tense or context, so paying close attention to the intended meaning is crucial. Alternatives like "might have prolonged" or "could have lengthened" can add precision depending on the context.

FAQs

How can I use "could have extended" in a sentence?

Use "could have extended" to describe a past possibility that didn't occur, like "If we had more funding, we "could have extended" the project deadline."

What's a good alternative to "could have extended"?

Alternatives include "might have prolonged", "could have lengthened", or "could have expanded" depending on the specific nuance you want to convey.

Is it correct to say "would have extended" instead of "could have extended"?

While both are grammatically correct, "could have extended" implies a possibility that wasn't realized, while "would have extended" suggests a certainty given certain conditions. Choose based on the intended meaning.

What is the difference between "could have extended" and "should have extended"?

"Could have extended" indicates a potential action that didn't happen, while "should have extended" implies an obligation or recommendation that was not followed. For example, "They "could have extended" the offer" vs. "They "should have extended" the offer".

ChatGPT power + Grammarly precisionChatGPT power + Grammarly precision
ChatGPT + Grammarly

Editing plus AI, all in one place.

Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.

Source & Trust

85%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: