they could not

USAGE SUMMARY

"they could not" is a grammatically correct phrase that is commonly used in written English.
It is typically used to indicate that someone or a group of people were unable to perform a certain action or achieve a certain result. Example: They could not find a solution to the problem, despite their best efforts.

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

They could not breathe.

The New York Times

They could not.

The New York Times - Sports

They could not generate themselves.

The New Yorker

They could not change anything.

The New York Times - Sports

They could not run countries.

The Economist

But they could not score.

The New York Times - Sports

They could not get on.

The Economist

But they could not convert.

The New York Times - Sports

They decided they could not.

The New York Times - Health

"They could not believe it".

The New York Times

They could not reach me.

The New York Times

Expert writing Tips

Best practice

Use "they could not" to express a clear inability or lack of permission. Ensure the context makes it clear who "they" refers to, avoiding ambiguity.

Common error

Avoid using "they could not" when you actually mean "they should not" or "they chose not to". The phrase indicates a genuine inability, not a lack of willingness or a moral prohibition.

Linguistic Context

The phrase "they could not" functions as a negative auxiliary verb phrase. It indicates the inability of a group ("they") to perform a specific action. As Ludwig AI confirms, this construction is grammatically sound and commonly used.

Expression frequency: Very common

Frequent in

News & Media

72%

Academia

10%

Science

8%

Less common in

Wiki

5%

Formal & Business

3%

Reference

2%

Ludwig's WRAP-UP

In summary, "they could not" is a grammatically correct and very common phrase used to express inability or lack of permission. As Ludwig AI confirms, this phrase is well-established in the English language. Its versatility allows for use across diverse contexts, including news, academic writing, and general conversation. While alternatives like "they were unable to" exist, "they could not" remains a clear and efficient way to convey the idea that a group was incapable of performing a certain action. When using this phrase, ensure that the scope of the inability is clear and unambiguous. It's important to note that this phrase indicates a genuine inability, not a matter of choice or preference.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

they were unable to

Uses "unable" instead of "could not", emphasizing a lack of ability.

they weren't able to

A more informal contraction of "they were unable to".

it was impossible for them to

Shifts the focus to the impossibility of the action, rather than their ability.

they failed to

Indicates a lack of success in performing an action.

they did not succeed in

More formal and emphasizes the lack of success.

they had no chance to

Highlights the absence of opportunity.

they were prevented from

Suggests an external force hindering their action.

they lacked the capacity to

Focuses on a deficiency in their abilities or resources.

they found it beyond their ability to

Emphasizes the challenging or difficult nature of the task.

they were incapable of

Highlights a fundamental inability.

FAQs

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

Use "they could not" to indicate an inability to perform an action. For example, "Despite their efforts, "they could not" find a solution."

What is a formal alternative to "they could not"?

A more formal alternative is "they were unable to". This phrase conveys the same meaning but with a slightly more elevated tone.

Is "they couldn't" the same as "they could not"?

Yes, "they couldn't" is a contraction of ""they could not"" and carries the same meaning. The contracted form is more informal.

When should I use "they could not" versus "they would not"?

"They could not" implies an inability, while "they would not" indicates a refusal or unwillingness. The choice depends on whether you want to emphasize capability or intention.