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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 identify

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "could not identify" is correct and usable in written English.
You can use it when expressing an inability to recognize or determine something or someone. Example: "After reviewing the evidence, the detective could not identify the suspect in the lineup."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Her father could not identify the body.

News & Media

The New York Times

He could not identify the component.

News & Media

The New York Times

X. returned they could not identify him.

News & Media

The New Yorker

But he could not identify Mr. Schwarz.

News & Media

The New York Times

Ms. Barrett could not identify her attacker.

News & Media

The New York Times

I could not identify with him".

News & Media

The New York Times

Ms. Glover could not identify her attackers.

News & Media

The New York Times

A police spokesman said he could not identify the medication.

News & Media

The New York Times

Club officers could not identify who painted William Taft.

News & Media

The New York Times

She could not identify the type of rifle.

News & Media

The New York Times

Another witness, however, could not identify the man.

News & Media

The New York Times
Show more...

Expert writing Tips

Best practice

Consider the level of formality required; while "could not identify" is generally acceptable, more formal situations might benefit from alternatives like "was unable to identify".

Common error

Avoid using "could not identify" when a more specific verb better describes the situation. For instance, if the problem is understanding something, use "could not understand" instead of a general "could not identify".

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

89%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "could not identify" functions as a negative verb phrase, expressing an inability or failure to recognize or determine something. Ludwig AI confirms its correctness and usability. The phrase combines the modal verb 'could', the negation 'not', and the verb 'identify'.

Expression frequency: Very common

Frequent in

News & Media

40%

Science

35%

Formal & Business

10%

Less common in

Encyclopedias

5%

Wiki

5%

Reference

5%

Ludwig's WRAP-UP

The phrase "could not identify" is a versatile and grammatically sound expression used to indicate an inability to recognize or determine something. Ludwig AI attests to its correctness. It's most prevalent in news and scientific contexts, reflecting its utility in objective reporting and analysis. While generally neutral in tone, alternatives like "was unable to identify" can add formality. When crafting your writing, ensure clarity in specifying what couldn't be identified and avoid overuse by considering more specific verbs when applicable. With 65 real-world examples, the phrase is considered very common. Top authoritative sources include The New York Times, The Guardian and The New Yorker.

FAQs

What can I say instead of "could not identify"?

You can use alternatives like "was unable to identify", "failed to identify", or "could not recognize" depending on the context.

Is "could not identify" grammatically correct?

Yes, "could not identify" is grammatically correct. It follows standard English grammar rules for expressing an inability to recognize or determine something.

How do I use "could not identify" in a sentence?

Use "could not identify" to indicate a failure to recognize or determine something. For example: "The witness "could not identify" the suspect in the lineup".

What's the difference between "could not identify" and "could not recognize"?

While similar, ""could not identify"" generally implies a failure to determine something's specific nature or source, while "could not recognize" focuses on a failure to remember or know something from a previous encounter.

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Source & Trust

89%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: