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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
which did not
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "which did not" is correct and usable in written English.
It can be used to refer to something that was expected to happen but did not occur, often in a relative clause. Example: "The project was supposed to be completed by Friday, which did not happen due to unforeseen circumstances."
✓ Grammatically correct
News & Media
Science
Alternative expressions(5)
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
— which did not.
News & Media
Which did not make the Hammer happy.
News & Media
Liberalism did not beget socialism, which did not beget totalitarianism.
News & Media
He handed a customer a pen, which did not work.
News & Media
Which did not mean that you did not make mistakes!
News & Media
He worked with gold, which did not rust.
News & Media
And never mind press freedom, which did not exist.
News & Media
On Alibris, which did not, it cost $540.
News & Media
Snow built up which did not thaw until March.
News & Media
They were soon proved correct, which did not surprise them.
News & Media
Posts which did not express any clear opinion were ignored.
News & Media
Expert writing Tips
Best practice
Use "which did not" in relative clauses to add information about a noun or pronoun, indicating something contrary to expectation. Ensure clarity by placing it close to the noun it modifies.
Common error
Avoid ambiguity by ensuring that "which did not" is clearly linked to the noun it modifies. A misplaced modifier can create confusion about what the phrase is intended to describe.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "which did not" functions as a relative clause introducing additional information about a preceding noun or pronoun. According to Ludwig AI, this construction is grammatically correct and usable. Examples from Ludwig illustrate its use in various contexts to indicate an absence of an expected action or state.
Frequent in
Science
40%
News & Media
58%
Wiki
2%
Less common in
Formal & Business
0%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "which did not" is a versatile and grammatically sound construction used to introduce relative clauses that add information or contrast expectations. As Ludwig AI confirms, it is widely accepted in written English. Its prevalence in both scientific and news media indicates its broad applicability across different registers. When employing this phrase, ensure clear reference to the modified noun to maintain clarity. Alternatives like "that failed to" or "that didn't" offer similar functionality with slight variations in formality. It's very frequent across news and science.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
which failed to
Similar to "that failed to", but used in a relative clause context.
that failed to
Emphasizes the failure of something to occur or succeed.
that didn't
A more informal contraction of "that did not".
that was not
Focuses on the absence of a state or condition.
which wasn't
A contraction of "which was not", suitable for less formal contexts.
that proved ineffective
Highlights the lack of effectiveness of something.
which proved insufficient
Emphasizes the inadequacy of something.
that turned out unsuccessfully
Indicates an unsuccessful outcome or result.
that ended without success
Similar to "that turned out unsuccessfully", focusing on the lack of success.
that achieved no effect
Emphasizes the absence of any tangible result.
FAQs
How do I use "which did not" in a sentence?
Use "which did not" to introduce a relative clause that provides additional information or contrasts an expectation. For instance, "The experiment was supposed to yield results, "which did not" happen due to a technical error."
What are some alternatives to "which did not"?
Alternatives include phrases like "that failed to", "which failed to", or "that didn't", depending on the desired level of formality and emphasis.
Is it better to use "that did not" or "which did not"?
"That did not" is generally used for restrictive clauses that are essential to the meaning of the sentence, while "which did not" introduces non-restrictive clauses that add extra information. For example, "The plan that did not succeed was abandoned" versus "The plan, which did not succeed, was abandoned."
How can I ensure clarity when using "which did not"?
Place the phrase close to the noun it modifies to avoid ambiguity. Ensure the context makes it clear what the "which" is referring to, and consider rephrasing if confusion arises.
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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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested