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
CEO of Professional Science Editing for Scientists @ prosciediting.com
they were unable
Grammar usage guide and real-world examplesUSAGE SUMMARY
"they were unable" is a grammatically correct sentence fragment that can be used in written English.
It generally expresses the inability of a subject or subjects to do something. For example: "They were unable to understand the exam instructions despite the tutor's repeated explanations."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(19)
they were incapable
they could not
they were absent
they were unavailable
they have not been able
they have been unable
they lack the ability to
they cannot
they were missing
they were excluded
they were away
they were out
they were lost
they were overlooked
they were failed
they were leaving
they failed to appear
they did not show up
they failed to respond
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
They were unable to reach him.
News & Media
They were unable to sell.
News & Media
They were unable to collect enough signatures.
News & Media
They were unable to cast their ballots.
News & Media
They were unable to follow the story.
News & Media
They were unable to find out.
News & Media
But they were unable to prove it.
News & Media
They were unable to get passengers.
News & Media
They were unable to restrain themselves.
News & Media
They were unable to stop themselves".
News & Media
At times they were unable to haul both sledges together.
News & Media
Expert writing Tips
Best practice
Use "they were unable" to clearly state a lack of ability or opportunity to perform an action. This phrase is suitable for formal and informal contexts and helps convey a sense of finality regarding the unachieved action.
Common error
Avoid using "they were unable" when the subsequent sentence suggests they actually did achieve the action. For example, instead of saying, "They were unable to complete the task, but after some effort, they succeeded", use a phrase like "they initially struggled" or "they found it difficult" to maintain logical consistency.
Source & Trust
87%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "they were unable" functions as a declarative statement expressing the incapacity or lack of opportunity for a group to perform a specific action. Ludwig's examples demonstrate its usage across diverse contexts, such as failing to achieve a goal, being restricted by circumstances, or lacking necessary resources.
Frequent in
News & Media
45%
Academia
28%
Science
15%
Less common in
Wiki
6%
Formal & Business
3%
Reference
3%
Ludwig's WRAP-UP
In summary, the phrase "they were unable" is a grammatically correct and widely used expression to indicate a lack of capacity, opportunity, or means to achieve a specific action or result. According to Ludwig, it is suitable for various contexts, ranging from formal reports and academic papers to news articles and general discussions. The phrase exhibits a neutral register. While alternatives like "they could not" or "they failed to" exist, "they were unable" provides a clear and objective way to convey a lack of ability or success.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
they were incapable
Replaces "unable" with "incapable", emphasizing a lack of inherent ability.
they could not
A more direct and concise way of expressing inability.
they did not manage to
Focuses on the lack of success in achieving something.
they failed to
Highlights the negative outcome of not being able to do something.
it was beyond their capacity
Emphasizes that something exceeded their limits or capabilities.
they were not in a position to
Indicates that circumstances prevented them from doing something.
they lacked the ability to
Highlights a missing skill or resource necessary to perform an action.
they were prevented from
Shows that an external force stopped them.
they were powerless to
Emphasizes a lack of control or influence over a situation.
they found it impossible to
Highlights the extreme difficulty or infeasibility of an action.
FAQs
How can I use "they were unable" in a sentence?
Use "they were unable" to indicate a lack of capacity, opportunity, or means to achieve a specific action or result. For example, "Despite their best efforts, they were unable to reach a consensus".
What are some alternatives to saying "they were unable"?
You can use alternatives such as "they were incapable", "they could not", or "they failed to" depending on the context.
Is it more formal to say "they were unable" or "they couldn't"?
"They were unable" is generally considered more formal than "they couldn't". The former is better suited for professional or academic writing, while the latter is more appropriate for informal conversation or less formal writing.
What's the difference between "they were unable" and "they didn't want to"?
"They were unable" indicates a lack of ability or opportunity, while "they didn't want to" indicates a lack of willingness or desire. The first implies an external or internal constraint, while the second implies a conscious choice. For example, "They were unable to attend the meeting due to a scheduling conflict" versus "They didn't want to attend the meeting because they disagreed with the agenda".
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
87%
Authority and reliability
4.6/5
Expert rating
Real-world application tested