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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
were unable to
Grammar usage guide and real-world examplesUSAGE SUMMARY
"were unable to" is correct and usable in written English.
You can use this phrase when talking about something someone was not able to do. For example: "The team were unable to reach the summit of the mountain due to adverse weather conditions."
✓ Grammatically correct
News & Media
Science
Formal & Business
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
Many were unable to work.
News & Media
Many were unable to swim.
News & Media
Officers were unable to locate any suspects.
News & Media
They were unable to reach him.
News & Media
Goalies were unable to stop shots.
News & Media
"We were unable to".
News & Media
Paramedics were unable to revive him.
News & Media
But the forwards were unable to deliver.
News & Media
"Unfortunately, we were unable to resolve it".
News & Media
"We were unable to slow them down.
News & Media
Some were unable to do so.
News & Media
Expert writing Tips
Best practice
When using "were unable to", ensure the subject clearly identifies who or what lacked the ability. For instance, "The rescuers were unable to reach the survivors" is more effective than "It was unable to reach the survivors."
Common error
Avoid using "was unable to" when the subject is plural. The correct form for plural subjects is "were unable to". For example, use "The team members were unable to agree" instead of "The team members was unable to agree".
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "were unable to" functions as a verbal phrase indicating a lack of ability or capacity to perform a specific action in the past. Ludwig examples confirm this usage, showing it used across diverse contexts.
Frequent in
News & Media
74%
Science
14%
Formal & Business
4%
Less common in
Wiki
2%
Academia
2%
Reference
0%
Ludwig's WRAP-UP
In summary, "were unable to" is a versatile phrase used to express a past inability to perform an action. As confirmed by Ludwig, it is grammatically correct and frequently used, particularly in news and media, to explain failures or unmet goals. When writing, ensure that the subject agrees in number and avoid using "was unable to" for plural subjects. For alternative expressions, consider "could not" or "failed to" depending on the context.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
could not
A more concise and direct way of expressing inability.
failed to
Focuses on the lack of success in achieving a specific goal.
did not succeed in
A more formal alternative to "failed to", emphasizing the lack of accomplishment.
were not capable of
Highlights a lack of inherent capacity or skill.
were incapable of
Emphasizes a stronger sense of inability, often due to limitations.
lacked the ability to
Indicates a missing skill or resource needed for the action.
were without the means to
Highlights the absence of necessary resources or tools.
found it impossible to
Emphasizes the insurmountable difficulty in performing the action.
were prevented from
Indicates an external force hindering the action.
could not manage to
Highlights a struggle and ultimate failure to accomplish something.
FAQs
How can I use "were unable to" in a sentence?
Use "were unable to" to indicate a past inability to perform an action. For example, "Despite their best efforts, they "were unable to" complete the project on time."
What are some alternatives to saying "were unable to"?
Alternatives include "could not", "failed to", or "did not succeed in". The best choice depends on the specific context and the nuance you want to convey.
Is it correct to say "was unable to" instead of "were unable to"?
No, "was unable to" is for singular subjects, while "were unable to" is for plural subjects. For example, "He was unable to attend" (singular) versus "They "were unable to" attend" (plural).
What is the difference between "were unable to" and "could not"?
"Were unable to" and "could not" are often interchangeable, but "were unable to" can sometimes imply a more formal or official tone, while "could not" is generally more conversational.
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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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested