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 explained

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "could not explained" is not correct in English.
The correct form would be "could not explain." You can use the correct form when indicating an inability to clarify or provide an explanation for something. Example: "Despite my best efforts, I could not explain why the project failed."

⚠ May contain grammatical issues

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

4 human-written examples

"This is something that any responsible real estate manager in the private sector is able to do, but for too many years we could not," explained Tangherlini, using the IRS parking lot in Georgia as a prime example.

News & Media

HuffPost

The increase in insulin resistance could not explained by weight gain or alterations in lipid levels.

The extent of articulation of integration in concept maps could not explained by motivation, nor by the value participants attached to the procedure and the instructions.

The analyzed maps were mostly derived from crosses of the North-American Apis mellifera population which represents an admixture of several ancestral populations [ 28] and overall similarities in the recombinational landscapes could not explained by ancestry alone [ 29].

Human-verified similar examples from authoritative sources

Similar Expressions

56 human-written examples

She could not explain it.

Nutrition could not explain it.

News & Media

The Economist

She could not explain, she said.

News & Media

The New York Times

Mr. Ledet could not explain it.

News & Media

The New York Times

She could not explain his criminal past.

News & Media

The New York Times

Others could not explain the contradiction.

News & Media

The New York Times

I could not explain that.

News & Media

The Guardian
Show more...

Expert writing Tips

Best practice

Always use the correct grammatical form, which is "could not explain", when indicating an inability to clarify or provide an explanation for something. For example: "Despite my best efforts, I "could not explain" why the project failed."

Common error

Avoid using the past participle form ("explained") directly after "could not". The correct structure requires the base form of the verb: "could not explain".

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

78%

Authority and reliability

1.8/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "could not explained" attempts to express an inability to provide a reason or clarification. However, it is grammatically incorrect. According to Ludwig AI, the correct form is "could not explain". The grammatical structure is a modal verb ("could") followed by a negative particle ("not") and the base form of the verb.

Expression frequency: Rare

Frequent in

Science

50%

News & Media

50%

Formal & Business

0%

Less common in

Academia

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

The phrase "could not explained" is a grammatically incorrect construction. The correct form is "could not explain". This mistake appears in a limited number of sources, as shown by Ludwig. Ludwig AI confirms that the correct usage involves using the base form of the verb after the modal verb "could" and the negative particle "not". While the intended meaning – an inability to clarify or understand something – may be clear, using the correct grammatical form enhances clarity and credibility. To avoid this error, remember to always use the base form of the verb after "could not". Alternatives such as "was unable to explain" or "could not clarify" can also be used depending on the context.

FAQs

How to correct the phrase "could not explained"?

The correct form is ""could not explain"". The modal verb "could" requires the base form of the verb, not the past participle.

What does it mean when someone says they "could not explain" something?

It means they were unable to provide a clear reason, justification, or understanding of a particular situation or event. You might also say they "were unable to explain".

Are there synonyms for "could not explain" that I can use?

Yes, you can use phrases like "could not clarify", "could not elucidate", or "could not account for" depending on the context.

Is "could not explained" ever correct in English?

No, "could not explained" is grammatically incorrect. The correct form is always ""could not explain"".

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

78%

Authority and reliability

1.8/5

Expert rating

Real-world application tested

Most frequent sentences: