once every three months

USAGE SUMMARY

The phrase "once every three months" is correct and usable in written English.
You can use this phrase to refer to something that happens every 3 months. For example: "I receive an email newsletter from my alma mater once every three months."

✓ Grammatically correct

News & Media

Science

Wiki

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

Now it's probably once every three months".

The New York Times - Sports

Users have "periods" once every three months.

The New York Times - Health

One company floundered because it answered requests for quotations only once every three months.

The Economist

Once every three months I go to Chelsea to see exhibitions.

The New York Times - Arts

Depo-Provera, a progesterone available in many countries, is administered by injection once every three months.

Encyclopedia Britannica

I go to the hairdresser once every three months, then I forget about it.

The Guardian - Lifestyle

His wife and mother could afford to visit him once every three months.

The New York Times

The doctor told them that Annie would need to come back once every three months for extended checkups.

The New Yorker

The overnight shutdowns, which will affect most major subway lines once every three months, amount to a radical new approach.

The New York Times

Samantha Googles "e-waste recycling near me" once every three months, before becoming overwhelmed and shutting down their computer.

The New Yorker

Paul region at least 49 times, an average of about once every three months, often for minor infractions.

The New York Times

Expert writing Tips

Best practice

When describing schedules or routines, use "once every three months" to provide clarity and avoid ambiguity. For example, instead of saying "we meet periodically", specify "we meet once every three months".

Common error

Avoid using "once every three months" when you mean "three times a month". Double-check your intended frequency to ensure accuracy and prevent miscommunication.

Linguistic Context

The phrase "once every three months" functions as an adverbial phrase of frequency, specifying how often something occurs. Ludwig shows its usage in various contexts, from medical checkups to routine maintenance.

Expression frequency: Very common

Frequent in

News & Media

40%

Science

35%

Wiki

10%

Less common in

Encyclopedias

5%

Formal & Business

5%

Academia

5%

Ludwig's WRAP-UP

The phrase "once every three months" is a clear and commonly used adverbial phrase indicating the frequency of an event. Ludwig AI confirms its grammatical correctness and widespread usage across various contexts, from news and media to scientific and wiki sources. Alternative expressions like "quarterly" or "every quarter" can be used for brevity, but "once every three months" offers explicit clarity, suitable for both formal and informal communication. When writing, ensure that you are precise with intended timeframes and avoid ambiguity with other frequencies. With high expert rating for its grammatical correctness and consistency, this phrase is a reliable choice for specifying recurring events.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

every three months

Omits "once" for a slightly more concise phrasing.

every quarter

Uses a different term ('quarter') to indicate the same three-month period.

every third month

Uses ordinal number for phrasing.

quarterly

Adverb form indicating something happens every three months.

three times a year

Expresses the same frequency using a different unit of time.

every 90 days

Specifies the interval in days rather than months.

at three-month intervals

Emphasizes the recurring period between occurrences.

on a quarterly basis

Formal alternative using 'basis'.

once in a fiscal quarter

Relates the occurrence to fiscal periods, which can be relevant in financial contexts.

every season

Relates the occurrence to seasons.

FAQs

How can I use "once every three months" in a sentence?

You can use "once every three months" to describe the frequency of an event or action. For example: "The doctor recommended a check-up "once every three months"."

What are some alternatives to saying "once every three months"?

Alternatives include "quarterly", "every quarter", or "three times a year". The best choice depends on the context.

Is it more common to say "once every three months" or "quarterly"?

"Once every three months" provides more explicit clarity, while "quarterly" is more concise and suitable when the audience understands the term.

Can I use "once every three months" in formal writing?

Yes, "once every three months" is suitable for formal writing. It is a clear and unambiguous way to express frequency. However, in some formal financial or business contexts, "quarterly" might be preferred for brevity.