could not be identified

USAGE SUMMARY

The phrase "could not be identified" is correct and usable in written English.
It can be used when referring to something that is unrecognizable or not able to be determined, often in contexts like research, investigations, or data analysis. Example: "The source of the error could not be identified despite extensive troubleshooting efforts."

✓ Grammatically correct

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Initially, 291 bodies could not be identified.

The New York Times

The majority could not be identified.

The New Yorker

Many of them could not be identified.

The New York Times

Three other foreigners could not be identified.

The Guardian

In 324 incidents, the responsible party could not be identified.

The Guardian

MacDonald ruled that the woman could not be identified.

The Guardian

Some bodies were so charred they could not be identified.

The New York Times

The judge said the woman and child could not be identified.

The Guardian

But with those another problem arose: some of the photographers could not be identified.

The New York Times

The six people, who could not be identified, had been slain.

The New York Times

The six, who could not be identified, also appeared to have been slain, the police said.

The New York Times

Expert writing Tips

Best practice

When using "could not be identified" in scientific writing, clearly state the methods used to attempt identification and any potential limitations that contributed to the failure.

Common error

Avoid overuse of passive voice constructions like "could not be identified". Whenever possible, rewrite the sentence in active voice to specify who attempted the identification and why it was unsuccessful. For example, instead of "The source could not be identified", try "Researchers were unable to identify the source due to limited data".

Linguistic Context

The phrase "could not be identified" functions as a passive construction, indicating that the subject of the sentence was not able to be recognized or determined. Ludwig AI confirms its grammatical correctness and widespread usability.

Expression frequency: Very common

Frequent in

Science

58%

News & Media

40%

Formal & Business

2%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

The phrase "could not be identified" is a grammatically correct and frequently used passive construction that serves to indicate an inability to determine the identity or nature of something. It is commonly found in both scientific and news contexts, as confirmed by Ludwig. While grammatically sound, writers should be mindful of potential overuse and consider active voice alternatives for improved clarity. Ludwig AI underscores the versatility of the phrase, while also suggesting avenues for refining its application in writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

was unidentifiable

Adjective form, focusing on the state of being impossible to identify.

remained unidentified

Highlights the persistence of the unidentified status over time.

could not be recognized

Emphasizes the lack of recognition rather than pure identification.

was impossible to determine

Focuses on the impossibility of ascertaining something.

could not be ascertained

More formal synonym, implying a difficulty in confirming or establishing.

eluded identification

Suggests an active resistance to being identified.

defied identification

Indicates a challenge or resistance to the process of identification.

identification was not possible

Rephrases the sentence to focus on the impossibility.

source remained unknown

Focuses on the unknown source of something.

could not be pinpointed

Emphasizes the inability to locate or specify something exactly.

FAQs

How can I rephrase "could not be identified" in simpler terms?

You can use phrases like "was unknown", "was not found", or "could not be determined" depending on the specific context. For instance, instead of "The cause of the error "could not be identified"", you could say "The cause of the error was unknown".

Is it better to use active or passive voice with "could not be identified"?

While "could not be identified" is grammatically correct, using the active voice can often make your writing more direct and clear. For example, instead of "The suspect "could not be identified"", you could say "Investigators could not identify the suspect".

What does "could not be identified" mean in a scientific context?

In science, "could not be identified" typically means that, despite employing standard analytical techniques, the specific substance, organism, or factor in question "remained unidentified". This could be due to limitations in technology, sample quality, or the presence of interfering substances.

Are there any formal synonyms for "could not be identified"?

Yes, more formal synonyms include "could not be ascertained", ""remained unidentified"", or "was unidentifiable". These alternatives are suitable for academic or professional writing where a higher level of formality is desired.