a three-month period

USAGE SUMMARY

The phrase "a three-month period" is correct and usable in written English.
You can use it to refer to a duration of time that lasts for three consecutive months. Example: "The project will be evaluated over a three-month period to assess its effectiveness."

✓ Grammatically correct

News & Media

Science

Academia

Human-verified examples from authoritative sources

Exact Expressions

41 human-written examples

A usual course of treatment includes six to 12 sessions over a three-month period.

Harvard University

He set 10 of them within a three-month period in 1942.

Britannica

The researchers then used fluorine MRI to measure oxygen levels in the IP space over a three-month period.

Massachusetts Institute of Technology

The researchers, Michael E. Porter and Nitin Nohria, tracked 27 CEOs over a three-month period.

Forbes

"In a three-month period of time I went down to 215.

Los Angeles Times

Thirty-nine other men were arrested here in a three-month period this summer.

The New York Times

Human-verified similar examples from authoritative sources

Similar Expressions

18 human-written examples

Once a student has graduated, there is a three month period to correct errors in the final term of registration.

Massachusetts Institute of Technology

"The drop in community sentiment towards coal is quite dramatic for a three month period," Lonergan said.

The Guardian

This has five questions assessing the number of working days lost due to migraine over a three month period.

The Journal of Headache and Pain

This network node represents the probability of ascent over a three month period, given magmatic intrusion is occurring at depth.

Journal of Applied Volcanology

The data for this study were collected during a three month period.

Huffington Post

Expert writing Tips

Best practice

When describing a specific duration, use "a three-month period" to clearly indicate a timeframe composed of three consecutive months. For example, "The study was conducted over "a three-month period" to observe seasonal changes."

Common error

Avoid using "a three-month period" when you actually mean "full stop" or another type of non-temporal "period". The phrase strictly refers to a duration of time.

Linguistic Context

The phrase "a three-month period" functions as a noun phrase, typically serving as an adverbial modifier indicating duration. It specifies the length of time over which an event, study, or activity occurs. As Ludwig AI confirms, its usage is grammatically correct.

Expression frequency: Common

Frequent in

News & Media

33%

Science

33%

Academia

14%

Less common in

Encyclopedias

4%

Wiki

4%

Formal & Business

0%

Ludwig's WRAP-UP

In summary, "a three-month period" is a grammatically sound and commonly used phrase that acts as a noun phrase, primarily functioning to define a duration of time. Ludwig AI confirms its correct usage. It is versatile enough to appear in news, scientific, and academic contexts, making it a useful phrase for expressing timeframes. For alternatives, consider "a 90-day duration" or "a trimester" depending on your specific needs.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

three months' time

Reorders the words while keeping the meaning intact.

a duration of three months

Replaces "period" with "duration" making the phrase more descriptive.

a 90-day duration

Replaces "three-month" with its numerical equivalent in days.

a span of three months

Substitutes "period" with "span", slightly altering the phrasing.

a three-month interval

Substitutes "period" with "interval", implying a specific space in time.

a 13-week timeframe

Uses "timeframe" instead of "period" and expresses the length in weeks.

a trimester

Uses a more concise, single-word term referring to a three-month division.

a quarter of a year

Expresses the duration as a fraction of a year.

a season

Uses a general term for a three-month period associated with weather.

the last quarter

Implies the last three months of something like a fiscal year

FAQs

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

You can use "a three-month period" to describe the length of an event, study, or any activity that spans that duration. For example, "The trial will run for "a three-month period"."

What are some alternatives to "a three-month period"?

Alternatives include "a 90-day duration", "a trimester", or "a quarter of a year", depending on the context.

Is it correct to say "during a three-month period"?

Yes, "during a three-month period" is grammatically correct. It specifies when something occurs within that timeframe. For instance, "Significant changes were observed during "a three-month period"."

What is the difference between "a three-month period" and "for three months"?

"A three-month period" emphasizes the duration as a single unit, while "for three months" emphasizes the time elapsed. "The project lasted "a three-month period"" highlights the span, while "The project lasted for three months" highlights the time passed.