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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
didn't function
Grammar usage guide and real-world examplesTable 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
"I didn't function in that environment.
News & Media
Messi and [Carlos] Tévez on both wings didn't function either.
News & Media
"I did pursue it and made sure that priest didn't function again in a priestly ministry".
News & Media
The damn thing failed, it didn't function like it should have done.
News & Media
Their product didn't function properly, and then word got out that Orbcomm didn't work.
News & Media
The once brilliant scholar found that his brain just didn't function properly.
News & Media
"Probably the most disappointing thing was we didn't function smoothly in the fourth quarter, in critical situations," Dungy said.
News & Media
So the plan didn't function effectively as an incentive for people to work together and aggresively drive the company forward.
News & Media
"If the building didn't function well, I think it would get hacked to pieces," Mr. Huttenlocher said.
News & Media
The Pranksters didn't function in real narrative time, not with all those drugs, and the book couldn't abide by a linear storyline.
News & Media
"Obviously we would have liked to think we could move the ball, but we didn't function and operate the way we needed to the rest of the game".
News & Media
Expert writing Tips
Best practice
In highly formal academic papers or legal documents, avoid the contraction and use the full form: did not function.
Common error
Avoid using "didn't function" to describe a person's laziness. While you can say a team "didn't function", applying it to an individual's work ethic usually sounds awkward unless you are referring to a physiological or neurological state.
Source & Trust
91%
Authority and reliability
4.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "didn't function" serves as a negative past-tense verb construction. According to Ludwig, it is primarily used to denote the failure of a subject to perform its designated role or operation. It consists of the auxiliary verb 'do' (negated with 'not') and the base form of the lexical verb 'function'.
Frequent in
News & Media
70%
Science
15%
Formal & Business
10%
Less common in
Academia
3%
Wiki
1%
Social Media
1%
Ludwig's WRAP-UP
In conclusion, "didn't function" is a highly versatile and authoritative phrase used to describe the failure of diverse systems. Whether applied to high-tech satellite networks, biological cells or professional sports teams, Ludwig AI demonstrates that this phrase is a staple of clear, descriptive English. Its usage in publications like The New York Times and Science Magazine confirms its reliability. Writers should use it when they need to specify that a purpose was not met, though they should consider alternatives like "malfunctioned" for technical glitches or "did not function" for formal academic contexts.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
failed to work
More general and slightly less formal than the query.
did not operate
A more formal version without the contraction.
malfunctioned
Suggests a specific technical or mechanical glitch.
was inoperative
A more formal, adjective-based state of being.
did not perform
Often used when expectations or standards are not met.
was dysfunctional
Specifically refers to systems or social groups that work poorly.
broke down
Phrasal verb emphasizing total mechanical collapse.
ceased to operate
A more dramatic or final way to describe stopping.
was out of order
Commonly used for public machinery or utilities.
failed to execute
Used frequently in technical or computer science contexts.
FAQs
How do I use "didn't function" in a sentence?
You can use it to describe mechanical or abstract failures, such as "The engine "didn't function" as expected" or "The team simply "didn't function" well together."
What can I say instead of "didn't function"?
Depending on your context, you can use "malfunctioned", "failed to work" or "was inoperative".
What is the difference between "didn't function" and "didn't work"?
While "didn't work" is common and versatile, "didn't function" sounds slightly more formal and is often preferred in technical, medical or sports analysis contexts.
Is it correct to use "didn't function" in professional writing?
Yes, it is perfectly correct. However, for a higher level of formality, use "did not function" to avoid the contraction.
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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
91%
Authority and reliability
4.8/5
Expert rating
Real-world application tested