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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
at certain times
Grammar usage guide and real-world examplesUSAGE SUMMARY
'at certain times' is correct and usable in written English.
You can use it when you need to specify particular times or moments. Example sentence: We need to monitor the system carefully at certain times throughout the day.
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(20)
countless of times
again and again
on several occasions
twice over
periodically
on different times
on many occasions
at instances
various times
at agreements
on several times
on countless occasions
other times over
repeated time and again
in two separate instances
at certain moment
at establishments
at sites
at moments
on a couple of occasions
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
Not just at certain times".
News & Media
Cameras are only appropriate at certain times.
News & Media
Choosing certain roles at certain times.
News & Media
Superman has felt weak, at certain times.
News & Media
People at certain times get the substandard product of it.
Academia
We have to hit certain houses at certain times.
News & Media
"We bent at certain times, but we didn't break".
News & Media
We didn't do it all that well at certain times.
News & Media
Only at certain times can a body be sexual.
News & Media
Certain spots are hot at certain times, he said.
News & Media
At certain times of day — say, 3 a.m.
News & Media
Expert writing Tips
Best practice
Use "at certain times" to specify that something occurs during particular moments or periods, rather than continuously or randomly. For instance, "The library is less crowded at certain times of the day."
Common error
Avoid using "at certain times" when you mean to say "sometimes" or "occasionally". "At certain times" implies a level of predictability or specificity that "sometimes" lacks. For example, instead of saying "The bus is late at certain times", consider "The bus is sometimes late" if the lateness isn't linked to specific hours or conditions.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "at certain times" functions as an adverbial phrase, modifying a verb or clause by specifying when an action occurs or a condition is valid. Ludwig AI confirms its correct usage through numerous examples across diverse contexts.
Frequent in
News & Media
38%
Science
33%
Academia
22%
Less common in
Wiki
3%
Formal & Business
2%
Reference
2%
Ludwig's WRAP-UP
The phrase "at certain times" is a versatile adverbial phrase used to specify when an action or condition occurs, as validated by Ludwig. Its neutral register and widespread presence across News & Media, Science, and Academia highlight its broad applicability. While grammatically correct and frequently used, it's important to ensure it accurately reflects the intended specificity, distinguishing it from general terms like "sometimes". Alternatives such as "at particular times" or "during select periods" can provide nuanced variations in meaning. Ludwig confirms that "at certain times" is a robust and reliable choice for precise temporal specification.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
at particular times
Replaces "certain" with "particular", emphasizing the specificity of the times.
at specific moments
Substitutes "times" with "moments", focusing on brief, distinct instances.
during select periods
Uses "during" to indicate a time frame and "select" to highlight the chosen nature of the periods.
in certain instances
Replaces "times" with "instances", shifting the focus to occurrences or events.
under specific circumstances
Emphasizes the conditions or situations during which something happens, rather than the time itself.
on occasion
Implies that something happens sporadically or infrequently.
from time to time
Suggests that something happens periodically but not regularly.
at intervals
Indicates that something happens with spaces of time in between.
periodically
Conveys that something happens at regular or irregular intervals.
sometimes
Indicates that something happens occasionally, without specifying when.
FAQs
How can I use "at certain times" in a sentence?
Use "at certain times" to indicate that an event or condition occurs during specific moments or periods. For instance, "The museum offers free admission "at certain times" on Tuesdays".
What's the difference between "at certain times" and "sometimes"?
"At certain times" implies specificity or predictability regarding when something happens, while "sometimes" suggests occasional occurrence without a clear pattern. For example, "The store is closed "at certain times" for holidays", versus "The store is "sometimes" closed unexpectedly".
Which is correct, "at certain times" or "in certain times"?
"At certain times" is the correct prepositional phrase. "In certain times" is not a standard or grammatically correct expression in English.
What can I say instead of "at certain times"?
You can use alternatives like "at particular times", "at specific moments", or "during select periods" depending on the context.
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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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested