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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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have not identified

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "have not identified" is correct and usable in written English.
You can use it when indicating that something has not been recognized or determined yet. Example: "We have not identified the source of the problem despite our extensive investigation."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

Police have not identified the suspects.

News & Media

The Guardian

Police have not identified any suspects.

News & Media

The New York Times

The police have not identified any suspects.

News & Media

The New York Times

The police have not identified either man.

News & Media

The New York Times

The police have not identified a suspect.

News & Media

The New York Times

Officials have not identified any suspects.

News & Media

The New York Times

Health officials have not identified the hospital.

News & Media

The New York Times

They have not identified a suspect.

News & Media

The New York Times

The authorities have not identified any suspects.

News & Media

The New York Times

The authorities have not identified any suspects or a motive.

News & Media

The New York Times

The authorities have not identified any of the intended targets.

News & Media

The New York Times
Show more...

Expert writing Tips

Best practice

Use "have not identified" when you want to state that something or someone has not yet been recognized or determined. This phrase is suitable for formal and informal contexts.

Common error

Avoid using "have not identified" in passive constructions where the actor should be explicitly stated. For example, instead of "The problem has not identified", write "We/They/Researchers have not identified the problem".

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

87%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "have not identified" functions as a verb phrase indicating a lack of completed action. It is used to express that a process of identification is incomplete or unsuccessful. Ludwig's examples show it in various contexts, from police investigations to scientific research.

Expression frequency: Very common

Frequent in

News & Media

69%

Science

18%

Formal & Business

3%

Less common in

Academia

0%

Encyclopedias

0%

Reference

0%

Ludwig's WRAP-UP

In summary, "have not identified" is a common and grammatically correct verb phrase used to indicate that something or someone has not yet been recognized or determined. As Ludwig AI indicates, the phrase is used across diverse contexts, particularly in news and scientific reporting. While alternatives exist, "have not identified" provides a clear and neutral way to express the absence of conclusive identification. When writing, be mindful of using the active voice for clarity and avoiding overly passive constructions.

FAQs

What does "have not identified" mean?

The phrase "have not identified" means that something or someone has not yet been recognized, determined, or specified. It indicates a lack of conclusive identification.

How can I use "have not identified" in a sentence?

You can use "have not identified" to state that something is currently unknown or undetermined, for example: "Investigators "have not identified" the suspect in the case yet."

What are some alternatives to "have not identified"?

Alternatives include "have not determined", "have failed to recognize", or "have yet to ascertain", depending on the context.

Is it better to say "have not identified" or "haven't identified"?

Both "have not identified" and "haven't identified" are grammatically correct. "Haven't identified" is a contraction and is more informal, while "have not identified" is more formal. The choice depends on the context and desired tone.

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Source & Trust

87%

Authority and reliability

4.6/5

Expert rating

Real-world application tested

Most frequent sentences: