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 not be determined

Grammar usage guide and real-world examples

USAGE SUMMARY

"could not be determined" is a correct and usable phrase in written English.
You can use it when something is unknown or uncertain. For example, "The cause of the fire could not be determined."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

56 human-written examples

The death toll could not be determined.

News & Media

The New York Times

Its fate could not be determined.

News & Media

The New York Times

His whereabouts could not be determined.

News & Media

The New York Times

Mr. Fawcett's concerns could not be determined.

News & Media

The New York Times

The gender of one body could not be determined.

News & Media

The New York Times

The names of the lawmakers could not be determined.

News & Media

The New York Times

Merrill's plans for replacing Ms. Callies could not be determined.

News & Media

The New York Times

The identity of that driver could not be determined.

News & Media

The New York Times

Two more died of causes that could not be determined.

News & Media

The New York Times

Whether he was sincere or ironic could not be determined.

News & Media

The New York Times

The exact size of the investment could not be determined.

News & Media

The New York Times
Show more...

Expert writing Tips

Best practice

Use this phrase when reporting findings in academic or scientific papers, especially when documenting limitations in your data or methodology.

Common error

Avoid overusing passive constructions like "could not be determined" throughout your writing. Sometimes, actively stating what actions were taken to attempt determination can make your writing more engaging and informative.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

86%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "could not be determined" functions as a modal passive construction, indicating an inability to ascertain or establish something. Ludwig AI confirms its grammatical correctness and usability. It is typically used to report on findings where definitive conclusions are lacking.

Expression frequency: Very common

Frequent in

Science

41%

News & Media

57%

Formal & Business

1%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, "could not be determined" is a versatile and correct phrase that is used to indicate that something is unknown or uncertain. Ludwig AI confirms this. It is commonly found in scientific reports and news articles to report on information that could not be definitively established. When using this phrase, ensure you clarify what specific aspect remains unknown. While grammatically sound, avoid overusing passive constructions. As illustrated by Ludwig, various alternatives such as "could not be ascertained" or "remained unclear" can be used to add variety to your writing. The phrase maintains a neutral to formal register, making it suitable for professional and academic communication.

FAQs

How can I use "could not be determined" in a sentence?

Use "could not be determined" when you want to express that something was impossible to find out or establish. For example, "The cause of the error "could not be determined" with the available data."

What are some alternatives to "could not be determined"?

You can use alternatives such as "remained unclear", "could not be ascertained", or "was impossible to determine" to convey a similar meaning.

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

While "could not be determined" is in the passive voice and perfectly acceptable, consider if using an active voice construction might provide more clarity or impact. However, in formal reports, passive voice is often preferred. For example, "Researchers "could not determine" the cause."

What does "could not be determined" imply?

The phrase implies that efforts were made to find something out, but these efforts were unsuccessful due to various limitations such as insufficient data, technical difficulties, or other hindering factors.

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

86%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: