at three-month intervals

USAGE SUMMARY

The phrase "at three-month intervals" is correct and usable in written English.
It can be used to describe an action or event that occurs every three months. Example: "The company conducts performance reviews at three-month intervals to ensure continuous employee development."

✓ Grammatically correct

Science

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

37 human-written examples

Graduates of the program return at three-month intervals for relapse prevention until they need only a once-a-year evaluation.

The New York Times

The cohort will be followed for 18 months at three-month intervals.

BMC Infectious Diseases

For each country we first calculate the implied yield curve from three months to ten years at three-month intervals.

Latin American Economic Review

Persons receiving inpatient mental-health care are assessed at admission, discharge, and at three-month intervals if the length of stay is three months or greater.

BMC Health Services Research

Interviews were conducted at three-month intervals over a period of up to 18 months and were analysed using qualitative methods in relation to Grounded Theory.

BMC Geriatrics

On the basis of this knowledge, the regular check-ups are performed at three-month intervals for the first two years and then every six months.

BMC Health Services Research

Human-verified similar examples from authoritative sources

Similar Expressions

23 human-written examples

DESIGN: This secondary analysis evaluated the systolic blood pressure of patients who received usual hypertension management across 24 months at six-month intervals.

Duke University

Surveys were initially conducted at six-month intervals.

Yale University

Analysis 3 examines the reliability of the composite measure of physical disorder at different spatiotemporal windows, finding that census tracts can be measured at two-month intervals and census block groups at six-month intervals.

Harvard University

Conducting reviews at six-month intervals should be viewed as a minimum requirement since workers with disabilities are entitled to commensurate wages for all hours worked.

Cornell University

Furthermore, under the terms of a 2005 agreement between the largest lenders and the New York attorney general's office, borrowers must be given a table showing what they will owe at six-month intervals.

The New York Times

Expert writing Tips

Best practice

When describing schedules or monitoring frequency, "at three-month intervals" is a clear and professional way to indicate events occurring every quarter of a year. Ensure your audience understands this timeframe, especially in international contexts where different quarterly systems may exist.

Common error

Avoid using "at three-month intervals" when you mean something lasting three months. Use it to describe the spacing between events, not the duration of a single event. For example, say "the project lasted three months" instead of incorrectly stating "the project was at three-month intervals".

Linguistic Context

The phrase "at three-month intervals" functions as an adverbial phrase modifying a verb, specifying when or how often an action occurs. This is confirmed by Ludwig examples showing monitoring, assessments, or follow-ups happening on this schedule.

Expression frequency: Common

Frequent in

Science

54%

News & Media

27%

Academia

14%

Less common in

Encyclopedias

2%

Wiki

1%

Formal & Business

0%

Ludwig's WRAP-UP

In summary, the phrase "at three-month intervals" is a grammatically sound and frequently used prepositional phrase that acts as an adverbial modifier. It is employed to denote the frequency of an action occurring every three months. While suitable for a wide array of contexts, from scientific research to news reports, it is crucial to differentiate between an interval and a duration. The Ludwig AI confirms the acceptability and provides ample evidence of the phrase's correct usage across varied sources, showcasing its reliability in professional and academic writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

every three months

A more straightforward and common way to express the same frequency.

at intervals of three months

Changes the word order while retaining the original meaning.

quarterly

Replaces the entire phrase with a single adjective indicating occurrence every three months.

every 90 days

Specifies the interval in days, making it more precise.

recurring every three months

Highlights the recurring nature of the event happening every three months.

every quarter of a year

More formal and explicit in defining the period.

spaced three months apart

Focuses on the separation between occurrences.

in three-month cycles

Emphasizes the cyclical nature of the recurrence.

three-monthly

Concise adjective form indicating a duration of three months.

trimesterly

Uses a less common word, 'trimesterly', to describe the quarterly recurrence.

FAQs

What does "at three-month intervals" mean?

The phrase "at three-month intervals" means that something occurs or is repeated every three months, or quarterly. It describes the frequency or spacing between events.

How can I use "at three-month intervals" in a sentence?

You can use "at three-month intervals" to describe recurring events. For instance, "Patients were monitored "at three-month intervals" to assess treatment efficacy".

Are there any alternatives to "at three-month intervals"?

Yes, alternatives include "quarterly", "every three months", or "every quarter of a year". The best choice depends on the desired level of formality and context.

Is "at three-month intervals" formal or informal?

"At three-month intervals" is suitable for both formal and neutral contexts. However, simpler alternatives like "every three months" may be preferred in informal settings.