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
every instance when
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "every instance when" is correct and usable in written English.
It can be used to refer to each specific occurrence or situation in which something happens. Example: "Every instance when the system fails must be documented for further analysis."
✓ Grammatically correct
Science
News & Media
Alternative expressions(4)
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
5 human-written examples
"In almost every instance when an Everglades law, rule, or even attitude has changed, it was influenced by the sugar-cane industry," Whitfield said.
News & Media
And, sure enough, in every instance when seasonal and time-of-day rate differentials have been put into effect, electric utilities and their customers have enjoyed enormous cost savings.
News & Media
d ( 2, 1 ) 2 + d ( 2, 1 ) 2 g QAM = 2, occurs (M2/2 = 128 times. We know that these combinations occur for every instance when n t ≠ n ̂ t. For a system with N t transmit antennas, we have N t 2 unique pairings. This leads to ψ 1 ~ = ( 0. 4 / 2 ) − N r 32 + ( 1. 2 / 2 ) − N r 64 + 32 + 128 N t 2. (47).
In every instance when we observed osk together with Staufen-GFP (n>30 flies) we did not find a single example when osk persisted as a cocmplex with Staufen-GFP, while entering and exiting the ring canal (Movie S8).
Science
Unless an observer is standing much closer than the 3 metre following distance we employ, it may not be possible to identify every instance when medication orders are being written in the chart.
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
At every time instance when the condition in (11) is satisfied, new possible identifications are added to the candidates.
It's a company built on a critique of high capitalism's throwaway culture, right down to every last detail for instance, when you upgrade a part, it'll come with a prepaid envelope in which you can send the old part back to be recycled properly.
News & Media
One alternative would establish limited enrollment periods (every two years, for instance) when people with pre-existing conditions could buy into the new exchanges without being denied coverage.
News & Media
He recalls an instance when he stopped every few hundred feet to rest his muscles.
News & Media
Some cells from the skin, for instance, when placed in culture, may divide every eight hours; other similar cells may divide only every 36 hours.
Encyclopedias
As, for instance, when she describes working with Ozon.
News & Media
Expert writing Tips
Best practice
Use "every instance when" to specifically highlight repetitive occurrences of an event or condition, especially when emphasizing the impact or consequence of each occurrence.
Common error
Avoid using overly verbose constructions. While "every instance when" is grammatically sound, simpler alternatives like "whenever" or "each time that" often convey the same meaning more concisely and clearly.
Source & Trust
87%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "every instance when" functions as a temporal clause, introducing a situation or condition that occurs repeatedly. As Ludwig AI confirms, this phrase is grammatically sound and serves to specify the timing or circumstances of an event. Examples from Ludwig illustrate its use in scientific and news contexts.
Frequent in
News & Media
40%
Science
40%
Formal & Business
6%
Less common in
Encyclopedias
2%
Social Media
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "every instance when" is a grammatically correct temporal clause used to emphasize the repetitive nature and individual occurrences of an event. As Ludwig AI confirms, it's suitable for neutral to slightly formal contexts, appearing in both news and scientific publications. While effective, consider simpler alternatives like "whenever" for conciseness. Remember, the strength of this phrase lies in highlighting the significance of each repetition. The best use case would be formal writing where each case is to be highlighted individually. You can also use "in all instances when" for more formal writing.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
in all instances when
More formal synonym with focus on all the occasions that something happens.
each time that
Replaces "every instance" with a more direct and common alternative focusing on frequency.
whenever
A more concise and general term indicating 'at any time that'.
every single time when
Adds emphasis to each and every occurrence.
in any case where
Shifts the focus to a specific condition or situation rather than time.
in every situation when
Highlights the circumstances or conditions more than the timing.
on each occasion that
Formal alternative, emphasizing the specific event or happening.
without exception, when
Indicates there are no exclusions or exceptions to the rule or event.
upon every occurrence that
Formal alternative, emphasizing specific events happening.
whensoever
Archaic and emphatic form of "whenever", implying any and all times.
FAQs
What can I say instead of "every instance when"?
You can use alternatives like "each time that", "whenever", or "in any case where" depending on the specific context.
Is "every instance when" formal or informal?
The phrase "every instance when" sits in a neutral to slightly formal register. More formal alternatives like "on each occasion that" exist, while "whenever" is more informal.
How do I use "every instance when" in a sentence?
Use "every instance when" to introduce a clause that specifies a recurring situation. For example, "Every instance when the system fails must be documented".
What's the difference between "every instance when" and "each time that"?
"Every instance when" and "each time that" are largely interchangeable. "Every instance when" can sometimes emphasize the individual occurrence more strongly.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
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
4.3/5
Expert rating
Real-world application tested