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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
may not occur
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "may not occur" is correct and usable in written English.
It can be used to indicate that something is possible but not guaranteed to happen. Example: "Due to unforeseen circumstances, the event may not occur as scheduled."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(20)
might not happen
could be absent
is unlikely to occur
could fail to materialize
might not occur
is unlikely to transpire
is subject to uncertainty
remains uncertain
is not assured
may not arise
may not exist
may not come
may not return
may not receive
may not happen
may not work
may not save
may not show
may not hold
may not recognize
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
Mr. Gates cautioned that it was still early and that an accelerated troop drawdown "may or may not" occur.
News & Media
Unfortunately, a natural cooling may not occur.
News & Media
Yet this touching scene may not occur at table.
News & Media
Any chasing of foxes that may or may not occur, the hunters say, is entirely accidental.
News & Media
This may or may not occur, but it is clearly not a policy.
News & Media
Other economists say that a recovery may not occur until 2011.
News & Media
But such events are rare and one may not occur this century.
News & Media
Try not to spend a lot of money in anticipation of something that may not occur.
News & Media
The major manifestation of the illness may not occur until after disembarkation.
News & Media
It may not occur to you, for example, to create a place for your vacuum cleaner.
News & Media
That may not occur until after the movie is released in home video, DreamWorks said.
News & Media
Expert writing Tips
Best practice
When using "may not occur", ensure the context clearly indicates what event or situation is being discussed. This avoids ambiguity and ensures the reader understands the uncertainty involved.
Common error
Avoid using "may not occur" repeatedly in formal documents. Vary your language with synonyms like "is unlikely to happen" or "faces uncertainty" to maintain reader engagement and demonstrate a sophisticated writing style.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "may not occur" functions as a modal verb phrase, expressing possibility or uncertainty. It indicates that an event or situation is not guaranteed to happen. Ludwig AI validates this through numerous examples of its usage in diverse contexts.
Frequent in
News & Media
35%
Science
30%
Academia
15%
Less common in
Encyclopedias
5%
Wiki
5%
Formal & Business
5%
Ludwig's WRAP-UP
In summary, the phrase "may not occur" is a versatile modal verb phrase used to express that something is possible but not guaranteed to happen. Ludwig AI confirms that it is grammatically correct and frequently used across diverse contexts, including news, science, and academic writing. While its formality is generally neutral, it's important to use it judiciously and vary language to prevent repetitive writing. The prevalence of "may not occur" in reputable sources like The New York Times and The Guardian underscores its acceptance and widespread use in the English language.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
might not happen
Replaces the modal verb "may" with "might", offering a slightly less formal tone but retaining the core meaning of possibility.
could fail to materialize
Substitutes "occur" with "materialize" and "may not" with "could fail to", indicating a potential absence of expected results.
is not guaranteed to take place
Replaces the modal verb with a more explicit expression of uncertainty, emphasizing the lack of assurance.
is unlikely to transpire
Emphasizes a low probability of happening, with a slightly more formal tone through the use of "transpire".
might be absent
Focuses on the absence of something, using "might be" to convey uncertainty about its presence.
is subject to uncertainty
Highlights the uncertainty surrounding an event, suggesting that its occurrence is not definite.
is not a certainty
Directly states that an event is not guaranteed, emphasizing the lack of a definite outcome.
remains uncertain
Indicates that the occurrence of an event is still unknown or undecided.
is not assured
Suggests that there's no guarantee that an event will take place, implying a level of doubt.
faces the possibility of not happening
Highlights the potential for an event not to occur, making the uncertainty the central focus.
FAQs
How can I use "may not occur" in a sentence?
You can use "may not occur" to express that an event or action is possible but not certain. For example, "The predicted economic recovery "may not occur" if consumer spending declines."
What are some alternatives to "may not occur"?
Some alternatives include "might not happen", "is unlikely to occur", or "could fail to materialize", depending on the context.
Which is correct, "may not occur" or "might not occur"?
Both "may not occur" and "might not occur" are grammatically correct and convey similar meanings. The choice between them often depends on stylistic preference or the specific nuance you want to express. "May" can sometimes suggest a slightly higher degree of possibility than "might", but this distinction is subtle.
What's the difference between "may not occur" and "will not occur"?
"May not occur" indicates a possibility that something won't happen, while "will not occur" states with certainty that something won't happen. The first expresses uncertainty, while the second expresses a definite outcome.
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested