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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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could not believe

Grammar usage guide and real-world examples

USAGE SUMMARY

"could not believe" is correct and usable in written English.
It is used to express disbelief or amazement at something. Example sentence: I could not believe how quickly the movie ended.

✓ Grammatically correct

News & Media

Sports

General Conversation

Human-verified examples from authoritative sources

Exact Expressions

58 human-written examples

"They could not believe it".

News & Media

The New York Times

She could not believe it.

I could not believe they were serious".

News & Media

The New York Times

Adam could not believe his luck.

News & Media

The New Yorker

He could not believe what he saw.

News & Media

The New York Times

I could not believe what was happening.

News & Media

The New York Times

Weber could not believe his eyes.

Even the drivers could not believe it.

"I could not believe my eyes".

News & Media

The New York Times
Show more...

Human-verified similar examples from authoritative sources

Similar Expressions

2 human-written examples

"We could not believe our eyes.

News & Media

BBC

I could not believe what had happened.

News & Media

Independent

Expert writing Tips

Best practice

Use "could not believe" to express genuine surprise or disbelief when narrating events or reactions.

Common error

Avoid using "could not believe" excessively in your writing. Vary your expressions of disbelief with alternatives like "found it hard to believe" or "was incredulous" to maintain reader engagement.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

88%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "could not believe" primarily functions as a verb phrase expressing disbelief or astonishment. It indicates the subject's inability to accept something as true or real. This aligns with Ludwig's analysis of the phrase.

Expression frequency: Very common

Frequent in

News & Media

38%

Sports

15%

General Conversation

10%

Less common in

Academia

7%

Wiki

5%

Science

25%

Ludwig's WRAP-UP

The phrase "could not believe" is a common and grammatically sound way to express disbelief or astonishment. As confirmed by Ludwig, it is suitable for various contexts, with a neutral register making it appropriate for both formal and informal situations. While very common, it's important to avoid overusing the phrase and consider alternatives like ""found it hard to believe"" or ""was astonished"" to add variety to your writing. The phrase is most frequently encountered in news and media sources.

FAQs

How can I use "could not believe" in a sentence?

You can use "could not believe" to express surprise or disbelief about something. For instance, "I could not believe how quickly the movie ended" or "She could not believe he had said that".

What are some alternatives to "could not believe"?

Alternatives include "found it hard to believe", "was astonished", or "it defied belief", depending on the nuance you wish to convey.

Is "could not believe" grammatically correct?

Yes, "could not believe" is grammatically correct and commonly used in both spoken and written English to express disbelief or surprise.

What's the difference between "could not believe" and "did not believe"?

"Could not believe" often implies a stronger sense of surprise or astonishment, while "did not believe" simply indicates a lack of belief. For example, saying "I could not believe it" suggests you were shocked, whereas "I did not believe it" means you doubted its truth.

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Source & Trust

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Authority and reliability

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Expert rating

Real-world application tested

Most frequent sentences: