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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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has been fluctuating

Grammar usage guide and real-world examples

USAGE SUMMARY

"has been fluctuating" is a perfectly correct and usable phrase in written English.
You can use it to describe a situation in which something changes or varies often, such as prices or temperatures. For example, "The weather this month has been fluctuating between hot and cold days."

✓ Grammatically correct

News & Media

Science

Formal & Business

Human-verified examples from authoritative sources

Exact Expressions

18 human-written examples

"His health has been fluctuating since February but he continued to fight until the last day, defying doctors' expectations.

News & Media

BBC

At the end of last year, the company reported $64 million in cash and recently the market cap has been fluctuating between $55 million and $65 million.

News & Media

The New York Times

On Monday morning, the Indian stock market — which hit a three-year low last March and has been fluctuating wildly since — soared.

News & Media

The New York Times

With federal intervention, the homicide rate dropped precipitously but began rising again around 2000 and has been fluctuating since Hurricane Katrina.

News & Media

The New York Times

The market price, which is supposed to reflect true market conditions, has been fluctuating between $1.12 and $1.16 a gallon in the Northeast district over the last few months.

News & Media

The New York Times

The Caspian has been fluctuating in size, and the Aral has been shrinking, primarily because its tributaries, the Amu Darya and the Syr Darya, have been tapped heavily for irrigation purposes.

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Human-verified similar examples from authoritative sources

Similar Expressions

41 human-written examples

The transmission range utilization ratio has been fluctuated to 10, 25, 50, and 75%.

The North America natural gas price has been fluctuated between $2.5/MCF and $10/MCF in the last 20 years.

He also said that prices had been fluctuating every couple of days.

News & Media

The New York Times

On Wall Street, where shares have been fluctuating wildly in recent weeks, the Standard & Poor's 500-stock index fell nearly 3percentt, and the Dow Jones industrial average fell 387.18 points, or 2.8percentt.

News & Media

The New York Times

Let's stay with the trans-Atlantic market for now, because that's where fares have been fluctuating most as jet fuel prices rise to what the industry warns will be record levels this year.

News & Media

The New York Times
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Expert writing Tips

Best practice

Use "has been fluctuating" to describe situations where there is no clear trend, and values are moving irregularly within a range. For example, "The company's stock price has been fluctuating since the announcement."

Common error

Avoid using "has been fluctuating" excessively in formal or academic writing when more precise terms could better describe the nature of the variation. For example, instead of saying "The data has been fluctuating", consider using "The data exhibits seasonal variation" or "The data shows a cyclical pattern" if those descriptions are more accurate.

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

83%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "has been fluctuating" functions as a verb phrase, specifically in the present perfect continuous tense. It indicates an action that started in the past and continues to occur, with emphasis on the ongoing and irregular nature of the change. As confirmed by Ludwig AI, this is a grammatically correct construction.

Expression frequency: Uncommon

Frequent in

News & Media

42%

Science

38%

Formal & Business

8%

Less common in

Encyclopedias

4%

Wiki

4%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "has been fluctuating" is a grammatically correct and usable verb phrase in the present perfect continuous tense. Ludwig AI confirms its proper usage to describe ongoing, irregular changes over time. While its frequency is classified as "uncommon", it appears across various contexts, particularly in News & Media and Scientific sources. Related phrases offer nuanced alternatives depending on the specific nature of the variation you wish to convey. When writing, be aware that "has been fluctuating" is most appropriate when referring to unpredictable variation within a certain range. In formal writing, consider whether there are more precise synonyms to describe the type of variation. The phrase enjoys a neutral tone and is well-understood across audiences.

FAQs

How can I use "has been fluctuating" in a sentence?

You can use "has been fluctuating" to describe something that varies irregularly. For instance, "The price of oil "has been fluctuating" due to global events".

What are some alternatives to "has been fluctuating"?

Depending on the context, alternatives to "has been fluctuating" include "has varied irregularly", "has oscillated erratically", or "has shown volatility".

Is it correct to say "has been fluctuate" instead of "has been fluctuating"?

No, "has been fluctuate" is grammatically incorrect. The correct form is "has been fluctuating", using the present participle of the verb to indicate ongoing action.

What's the difference between "has been fluctuating" and "has fluctuated"?

"Has been fluctuating" implies a continuous or repeated action over a period, while "has fluctuated" suggests a completed action. For example, "The temperature "has been fluctuating" all day" versus "The temperature "has fluctuated" significantly overnight".

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Real-world application tested

Most frequent sentences: