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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
this fluctuates
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "this fluctuates" is correct and usable in written English. You can use it when referring to something that varies or changes over time. Example: "The temperature in the region fluctuates throughout the year." Alternative expressions include "this varies" and "this changes."
✓ Grammatically correct
Science
News & Media
Academia
Alternative expressions(20)
this varies
this changes
this is subject to change
this is dependent on
it is inconsistent
it alters
depends on factors
this is variable
this is conditional
this is inconsistent
this differs
it depends
this affects
this determines
this results in
this is relevant to
this reflects
this constitutes
this incorporates
this creates
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
8 human-written examples
We know that this fluctuates much more than GDP over the business cycle, because purchases of manufactured goods slump much more in recessions than purchases of services.
News & Media
This fluctuates from day to day with the weather and is listed along with the temperature and the wind chill on television monitors throughout the station.
News & Media
Whereas testosterone tends to decline as men get older, in women, it is balanced by oestrogen, and this fluctuates with the menstrual cycle, after pregnancy, if you take the pill, and during the menopause.
News & Media
Emae has a population of roughly 900 people although this fluctuates with intrastate and interstate migration and returns.
"We discovered the pattern formation in the color of each stones evolves throughout the day; this fluctuates over areas of the brain in use," explains Lauren Bowker, founder and principal designer at THE UNSEEN.
News & Media
In addition, the binding of transcription factors to their target sites along the genome depends on the concentration in the immediate neighborhood of these sites, and this fluctuates as molecules diffuse into and out of the neighborhood.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
51 human-written examples
And this fluctuating uncertainty was precisely tracked by a fancy mathematical equation.
News & Media
All the energy and anxiety engendered by this fluctuating environment were on display last week in a shrill televised debate ineffectually moderated by Larry King.
News & Media
He's the reason the Jaguars ranked third in rushing last season and the reason there's hope for this fluctuating offense.
News & Media
This has been a compelling Premiership season with all sorts of spectacular twists but no game has been won by a better individual try than the one which settled this fluctuating encounter in Coventry.
News & Media
If there is confusion, for many it lies in uncertainty over whether the reforms are about saving money or about improving support for the vulnerable, and the tone of the government's statements on this fluctuate, depending on the audience.
News & Media
Expert writing Tips
Best practice
Always ensure the pronoun "this" has a clear antecedent so the reader knows exactly what is varying.
Common error
Avoid using "this fluctuates" if the subject is only moving in one direction. Fluctuation implies an irregular rising and falling rather than a steady increase or decrease.
Source & Trust
87%
Authority and reliability
4.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "this fluctuates" consists of a demonstrative pronoun acting as the subject and an intransitive verb in the third-person singular. According to Ludwig, it serves to attribute a quality of instability or periodic change to a previously mentioned concept. It is a complete predicate that concisely summarizes complex data behavior.
Frequent in
Science
55%
News & Media
30%
Academia
10%
Less common in
Formal & Business
3%
Wiki
1%
Social Media
1%
Ludwig's WRAP-UP
In conclusion, "this fluctuates" is a highly efficient linguistic tool for describing non-linear change. Based on data from Ludwig AI, the phrase is most at home in scientific and journalistic contexts where documenting the rise and fall of variables—such as temperature, prices, or hormones—is essential. While it is a simple subject-verb construction, its precision makes it superior to broader terms like "changes" when the specific intent is to highlight a lack of constancy. Writers should ensure the subject "this" is clearly defined to maintain clarity in technical descriptions.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
this varies
More general and does not necessarily imply a repeated rising and falling motion
this rises and falls
Specifies the direction of the fluctuation more explicitly
this ebbs and flows
Adds a more metaphorical or rhythmic quality to the description of change
this changes
A simpler and broader term that lacks the nuance of repeated variation
this undergoes variation
A more formal and passive way to describe the process
this shifts
Suggests a change in position or state rather than a continuous variation
this oscillates
Implies a more regular or technical back-and-forth movement around a center point
this swings
Suggests more extreme or sudden variations
this wavers
Often used to imply instability or a lack of steadiness
this alternates
Indicates switching between two specific states or values
FAQs
How do I use "this fluctuates" in a sentence?
You can use it to describe data or conditions that change repeatedly, such as: "The market price is never stable; "this fluctuates" based on daily demand."
What is a more formal way to say "this fluctuates"?
In academic writing, you might prefer "this exhibits variability" or "this is subject to fluctuation".
Is it correct to say "this fluctuates" or "this is fluctuating"?
Both are correct. Use "this fluctuates" for a general characteristic or habit and "this is fluctuating" to describe a specific event happening right now.
What can I say instead of "this fluctuates" when talking about emotions?
When describing feelings, you might use "this wavers" or "this vacillates" to indicate indecision or emotional shifts.
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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
87%
Authority and reliability
4.8/5
Expert rating
Real-world application tested