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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 happens
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "which happens" is correct and usable in written English.
You can use it to refer to something that occurred in the past or is ongoing. For example: "I have experienced a lot of changes in my life recently, which happens when you move to a new city."
✓ Grammatically correct
News & Media
Academia
Science
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
59 human-written examples
Which happens.
News & Media
Which happens anyway.
News & Media
Which happens to be true.
News & Media
person (which happens all the time).
News & Media
Which happens quite often.
News & Media
Which happens often.
News & Media
Aortic valve closure (A2) which happens first.
Academia
Pulmonic valve closure (P2) which happens second.
Academia
The question is, which happens more?
News & Media
"We'll see which happens first," he joked.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
1 human-written examples
"Which happened to be true".
News & Media
Expert writing Tips
Best practice
When using "which happens", ensure that the 'which' clause is nonrestrictive and set off by commas. This indicates that the information is extra and not essential to the sentence's core meaning.
Common error
Avoid using "that happens" instead of "which happens" when introducing nonrestrictive clauses. "Which" is appropriate for clauses that add extra information, while "that" is for essential information. For example, use "The error, which happens occasionally, was quickly fixed", not "The error that happens occasionally was quickly fixed".
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "which happens" functions as a nonrestrictive relative clause, providing additional, non-essential information about a preceding event or situation. Ludwig's examples demonstrate its use in various contexts to add supplementary details.
Frequent in
News & Media
48%
Academia
28%
Science
14%
Less common in
Wiki
4%
Formal & Business
2%
Reference
0%
Ludwig's WRAP-UP
In summary, "which happens" is a versatile phrase used to introduce nonrestrictive clauses, providing supplementary information about a preceding noun or situation. Ludwig AI confirms its grammatical correctness and widespread use across various contexts. It is most commonly found in News & Media, Academia, and Science, maintaining a neutral tone suitable for diverse writing styles. Remember to set off the 'which' clause with commas and avoid substituting it with 'that' in nonrestrictive contexts. Alternatives like "that occurs" or "as it turns out" can be used for variety, but "which happens" remains a clear and effective choice.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
that occurs
Focuses on the occurrence of an event or situation, similar to "which happens" but slightly more formal.
this often occurs
Highlights the frequency of an event, emphasizing repetition more than "which happens".
as it turns out
Emphasizes the revealing of a fact or situation, adding a nuance of discovery not present in "which happens".
that is the case
Highlights the truth or reality of a situation, providing a confirmation aspect absent in "which happens".
it is commonplace
Indicates a widespread or ordinary occurrence, focusing on prevalence which is a nuance not present in "which happens".
it is typical
Focuses on the commonality or expected nature of an event, adding a sense of predictability that "which happens" may lack.
such is the reality
Emphasizes the unavoidable or factual nature of a situation, imparting a stronger sense of acceptance than "which happens".
that comes to pass
Implies a fulfillment or realization of something over time, introducing a sense of eventual happening absent in "which happens".
it so transpired
Focuses on the unfolding or development of events, imparting a narrative quality that "which happens" does not necessarily convey.
as fate would have it
Attributes the event to destiny or chance, adding a sense of inevitability not implied by "which happens".
FAQs
How can I use "which happens" in a sentence?
Use "which happens" to introduce a nonrestrictive clause, adding extra information about a preceding noun or situation. For example, "The software crashed, "which happens" sometimes when the system is overloaded".
What are some alternatives to using "which happens"?
Depending on the context, you could use alternatives like "that occurs", "as it turns out", or "this often occurs" to express similar meanings.
Is it correct to say 'that happens' instead of "which happens"?
In nonrestrictive clauses, it's more appropriate to use "which happens". 'That' is generally used for restrictive clauses that are essential to the sentence's meaning. Using 'which' signals that the clause is providing additional, non-essential information.
What's the difference between "which happens" and "which happened"?
"Which happens" refers to a current or recurring event, while "which happened" refers to a specific event in the past. For example, "The meeting, "which happens" every week, is usually productive" versus "The incident, which happened yesterday, caused some concern".
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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
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested