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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
when that occurs
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "when that occurs" is correct and usable in written English.
It can be used to refer to a specific event or situation that is expected to happen in the future. Example: "We will implement the new policy when that occurs, ensuring a smooth transition for all employees."
✓ Grammatically correct
News & Media
Academia
Science
Alternative expressions(20)
is equivalent to
in the wishes of
rapidly thereafter
for the immediate future
Very soon
somewhere later
one week before
at the early time
in the next weeks
during the previous years
it is important to remember
to avoid disruption
not yet completed
in accordance with direction from
a couple of books before
if not soon
as excellent as
in a flash
as instructed by the directive
as tall as
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
55 human-written examples
"What he will do when that occurs is up to Julian Assange.
News & Media
When that occurs, the executives say, rents and profits will then rise steadily.
News & Media
When that occurs, the company's strategy is broken into a cascade of discrete but linked elements.
News & Media
"We really feel for those people and their loved ones when that occurs," she said.
News & Media
"Whether or not that occurs -- and when that occurs -- is not my decision," he said.
News & Media
This is a painful, painful reminder that awful things can happen when that occurs.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
5 human-written examples
She said she could not recall exactly when that occurred.
News & Media
And in addition to that, when that -- and when that occurred, what did Romney do?
News & Media
GONZALES: Senator, I have no recollection of knowing when that occurred.
News & Media
"But he had this terrible tragic accident with Officer Hess and he was intoxicated when that occurred".
News & Media
How exactly he was selected, and when that occurred, is open to debate, as Bede himself had two different stories.
Wiki
Expert writing Tips
Best practice
Use "when that occurs" to clearly establish a conditional relationship between two events, ensuring the timing and sequence are understood. For impactful writing, consider stronger verbs or more vivid descriptions to replace the generic 'occurs'.
Common error
While grammatically sound, "when that occurs" can sound stilted in casual conversation. Opt for simpler alternatives like "when that happens" or "if that comes up" in less formal settings.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "when that occurs" functions as an adverbial clause of time, introducing a condition that must be met for the main clause to be true. As Ludwig AI highlights, it indicates a specific event or situation expected in the future. This temporal clause sets the stage for the outcome described in the main clause.
Frequent in
News & Media
60%
Academia
20%
Science
10%
Less common in
Formal & Business
5%
Wiki
3%
Encyclopedias
2%
Ludwig's WRAP-UP
In summary, "when that occurs" is a grammatically correct and frequently used phrase that introduces a conditional clause of time. As Ludwig AI confirms, this phrase helps to establish a clear relationship between two events, predicting a future outcome when a specific condition is met. While it is suitable for various contexts, including news, academic writing, and science, it tends to have a neutral to formal tone. To avoid sounding stilted in informal situations, consider using simpler alternatives such as "when that happens". Keep in mind that the phrase usage tends to be less common in Encyclopedias or Wiki.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
if that comes about
Substitutes "occurs" with "comes about", offering a slightly less formal tone.
as soon as that happens
Highlights the immediacy of the subsequent action following the event.
upon that happening
Replaces "when" with "upon" and uses a gerund phrase, altering the sentence structure.
once that has happened
Emphasizes the completion of the event before the subsequent action.
should that happen
Uses an inversion for a more formal tone and emphasizes the hypothetical nature of the event.
following that event
Uses a more formal structure to indicate a sequence of events.
in the event that it happens
Expands the phrase to explicitly state the condition, adding formality.
when it comes to pass
Replaces 'occurs' with a more literary and somewhat archaic phrase 'comes to pass'.
on that occasion
Shifts the focus to a specific instance or event, implying a reaction.
at that point
Refers to a specific moment in time following the occurrence.
FAQs
How can I rephrase "when that occurs" for variety?
You can use alternatives such as "if that happens", "should that occur", or "in the event that it happens" depending on the desired level of formality.
Is "when that occurs" too formal for everyday conversation?
In many casual conversations, "when that occurs" might sound overly formal. Simpler alternatives like "when that happens" or "if that comes up" are often more appropriate.
What's the difference between "when that occurs" and "when that happens"?
"When that occurs" and "when that happens" are largely interchangeable, but "when that occurs" is generally considered more formal and is more common in written rather than spoken language. Choose based on your audience and the overall tone.
Can "when that occurs" be used at the beginning of a sentence?
Yes, "when that occurs" can be used at the beginning of a sentence to introduce a conditional clause, such as in the example, "When that occurs, the platform begins to grow exponentially."
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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