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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 explain

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "could not explain" is correct and usable in written English.
You can use it when indicating an inability to provide a clear or satisfactory explanation for something. Example: "When asked about the sudden changes in the project, she could not explain her reasoning."

✓ Grammatically correct

News & Media

Science

Human-verified examples from authoritative sources

Exact Expressions

57 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

Doctors could not explain it.

News & Media

The New York Times

He could not explain why.

News & Media

The New York Times

He could not explain much.

today -- but could not explain why.

Show more...

Expert writing Tips

Best practice

When using "could not explain", ensure the context clearly indicates what could not be explained and why it's relevant to the discussion. For instance, specify the event, reason, or phenomenon that defies explanation.

Common error

Avoid using "could not explain" in contexts where active voice would be more direct and engaging. Instead of "the error could not be explained", consider "they could not explain the error".

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 explain" functions as a verbal phrase expressing an inability or failure to provide a reason, cause, or justification for something. As Ludwig AI explains, it's frequently used in news and media, as well as scientific contexts to highlight gaps in understanding.

Expression frequency: Very common

Frequent in

News & Media

43%

Science

40%

Wiki

3%

Less common in

Formal & Business

0%

Encyclopedias

0%

Social Media

0%

Ludwig's WRAP-UP

In summary, "could not explain" is a versatile phrase used to express an inability to provide a clear explanation or understanding of something. As Ludwig AI confirms, the phrase is grammatically correct and sees frequent use across diverse contexts, particularly in News & Media and Science. While alternatives like "was unable to clarify" or "couldn't account for" exist, "could not explain" remains a straightforward and widely accepted way to convey a lack of explanation.

FAQs

How can I use "could not explain" in a sentence?

You can use "could not explain" to indicate an inability to provide a reason or understanding for something. For example, "The witness "could not explain" what he saw that night."

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

You can use alternatives like "was unable to clarify", "couldn't account for", or "failed to elucidate" depending on the context.

Which is correct, "could not explain" or "could not explained"?

"Could not explain" is the correct form. "Could not explained" is grammatically incorrect because "explain" should be in the base form after "could".

What's the difference between "could not explain" and "refused to explain"?

"Could not explain" implies an inability to provide an explanation, while "refused to explain" indicates a deliberate choice not to provide one, regardless of ability.

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Source & Trust

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Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: