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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
at occasion
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "at occasion" is not correct in standard written English.
The correct expression is "on occasion," which is used to refer to something that happens occasionally or from time to time. Example: "On occasion, I like to treat myself to a nice dinner."
⚠ May contain grammatical issues
Alternative expressions(20)
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
20 human-written examples
Severity of negative symptoms predicted poor neuropsychological performance on IQ, verbal fluency and memory measures at occasion one.
Science
For the repeated administration of the same items to a sample over different occasions, Anderson (1985) introduced a multidimensional Rasch model with a time specific latent score θ it for person i at occasion t, such that, a latent linear score can be defined as η ijt = θ it − b j. (2).
Similarly, p2 is the probability that conditional on the individual being alive and in the sample, that it will be encountered at occasion 2, and so on.
Science
Let p1 be the registration probability at occasion 1 and p2 at occasion 2, registration is independent from occasion.
Let, as in Ledberg and Wennberg [ 1], denote with n1 all registrations at occasion 1 (here every occasion is a new registration) and with n2 all registrations at occasion 2 that were not yet registered at occasion 1.
We considered identification of phenotype (at occasion t) to environment (at occasion t + 1) transmission in longitudinal model comprising genetic, common and unique environmental simplex models (autoregressions).
Science
Human-verified similar examples from authoritative sources
Similar Expressions
40 human-written examples
Nevertheless, short onramps at occasions are designed and built when right of way is constrained possibly by a variety of issues.
What are some of your favorite beverages to enjoy at occasions like networking events or dinners?
News & Media
He led blessing ceremonies or invoked divine grace at occasions involving Sunni and Shiite Muslims, Christians, Jews, Zoroastrians and Baha'is.
News & Media
This is usually solved by fixing these to zero (e.g., σ[a1] = σ[aT] = 0; same applies to the environmental occasion-specific variances), or by equating the variance components at occasions 1 and 2, and at occasions T − 1 and T (e.g., σ[at] = σ[at+1], where t = 1 or t = T − 1; same applies to the environmental occasion-specific variances).
Science
Reliability assessment data was gathered at three occasions at two OFP/TMD clinical centers in Linköping and Kalmar, Sweden.
Expert writing Tips
Best practice
Always use "on occasion" instead of "at occasion" to convey the meaning of something happening sometimes but not frequently. For example, "On occasion, I enjoy going to the theater."
Common error
Avoid using "at" where "on" is required. The correct preposition in this idiomatic expression is "on". Therefore, "on occasion" is the standard and accepted form.
Source & Trust
60%
Authority and reliability
1.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "at occasion" is grammatically incorrect. The correct form is the prepositional phrase "on occasion". This phrase functions as an adverbial modifier, indicating the frequency with which an action occurs. Ludwig AI confirms that "at occasion" is not a standard English construction.
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Ludwig's WRAP-UP
In summary, the phrase "at occasion" is grammatically incorrect in standard English. The correct and accepted form is "on occasion", which serves as an adverbial phrase indicating that something happens sometimes or occasionally. Ludwig AI analysis underscores the non-standard nature of "at occasion". To ensure clarity and correctness in writing, it's crucial to use "on occasion" instead. Given that there are no valid examples of "at occasion" in reliable sources, this phrase should be avoided in both formal and informal contexts.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
during the event
Focuses on the time frame of the event itself, rather than implying it happens from time to time.
at the time
Indicates a specific point in time, lacking the occasional nature that "on occasion" suggests.
when the time comes
Suggests a future event, differing from the present or past implications.
on the given day
Highlights a specific date, not necessarily something happening repeatedly.
upon that instance
Emphasizes a single occurrence, unlike the potential repeated nature of "on occasion".
at that moment
Pinpoints a precise instant, diverging from the idea of occasional happenings.
in those circumstances
Relates to a specific set of conditions, differing from a temporal reference.
when that occurs
Similar, focuses on future occurrences rather than general or past events.
in such instances
Implies a specific type of situation, more conditional than temporal.
at a certain point
Refers to a nonspecific time, lacking the idea of an event or occasion.
FAQs
What is the correct way to say something happens sometimes?
The correct way to express that something happens sometimes is to use the phrase "on occasion". For example, "I visit my family on occasion".
Is it grammatically correct to use "at occasion"?
No, "at occasion" is not grammatically correct. The correct preposition to use in this phrase is "on", making the correct phrase "on occasion".
Which is correct, "on occasion" or "in occasion"?
"On occasion" is the correct and widely accepted phrase. "In occasion" is not standard English and should not be used.
What does "on occasion" mean, and how can I use it in a sentence?
"On occasion" means sometimes or occasionally. You can use it in a sentence like this: "On occasion, we go out for dinner."
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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
60%
Authority and reliability
1.5/5
Expert rating
Real-world application tested