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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
be fluctuated on
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "be fluctuated on" is not correct in English and does not convey a clear meaning.
It is not usable in written English as it stands, and it seems to be a misconstruction of the intended expression. Example: "The stock prices are expected to be fluctuated on market trends" would be incorrect.
⚠ May contain grammatical issues
Science
News & Media
Alternative expressions(6)
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
1 human-written examples
The location of the volcanic front is known to be fluctuated on a geological time scale (e.g., Yamaji 2003), and indeed the volcanic front along the Ryukyu arc is thought to have migrated eastward in accordance with the eastward retreat of the Ryukyu Trench during 2 4 Ma (Shinjo et al. 2000).
Science
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
On the contrary, the emission area A is fluctuated on the distance d.
These magnetization patches are fluctuating on the scale of a few micrometers and are interpreted in terms of the random anisotropy.
Science
To give a concrete example, we simulate a presynaptic neuron whose excitability is fluctuating on multiple timescales (Fig 2A).
Science
It appears that strong, though not unequivocal, support emerges for the results of [1] that biodiversity and origination are fluctuating on a roughly 62 Myr time scale.
Science
Equivocal support also emerges for the result of [2], [3] that extinction intensity (and with a lesser significance origination and total biodiversity) has also been fluctuating on a roughly 26 30 Myr time scale.
Science
For example, a hidden causal variable might have masked the effects of body size in shallow comparisons, if such a variable was fluctuating on timescales comparable to the divergence times of species or genera.
Science
Therefore, during this process the water production rate will be fluctuated and it depends on how quick the matrix feed the fracture with fluid.
Critics are reluctant to credit the program for the decline in homicides, saying the numbers are small, the downward curve is new, and the murder rate could simply be fluctuating based on forces that have little to do with law enforcement.
News & Media
I used to have quite dark periods in the day and sort of…but it would be fluctuating depending on the voices.
Science
While the PF magnets had been operating, the mass flow rate reduced and the pressure head of the circulator was fluctuated depending on the PF magnet operation scenario.
Expert writing Tips
Best practice
Avoid using the phrase "be fluctuated on" in your writing. It is grammatically incorrect and can confuse your readers. Instead, opt for clearer and more conventional alternatives such as "be subject to fluctuations" or "vary depending on".
Common error
A common mistake is to attempt to use "fluctuate" in the passive voice with "on" as a preposition, which is not grammatically correct. Remember that "fluctuate" typically describes an action that something performs, rather than an action being performed upon it. Therefore, avoid constructions like "be fluctuated on" and choose active voice or alternative passive constructions that accurately convey the intended meaning.
Source & Trust
75%
Authority and reliability
1.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "be fluctuated on" attempts to convey a passive construction, indicating that something is subject to change. However, as Ludwig AI highlights, the construction is grammatically incorrect and unconventional in standard English. It's an attempt to use "fluctuate" passively but fails to adhere to grammatical rules.
Frequent in
Science
53%
News & Media
38%
Formal & Business
9%
Less common in
Encyclopedias
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "be fluctuated on" is grammatically incorrect and should be avoided in formal writing. As Ludwig AI points out, this construction doesn't align with standard English grammar. Instead, use alternative phrases like "be subject to fluctuations", "vary depending on", or "be influenced by" to express the intended meaning accurately. These alternatives ensure clarity and grammatical correctness while conveying the idea of change or variation. Using "be fluctuated on" can confuse your readers, so it's best to opt for more conventional and grammatically sound options.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
be subject to fluctuations
Replaces "fluctuated on" with a more common and grammatically correct construction.
be influenced by fluctuations
Indicates that something is affected by changes or variations.
be prone to fluctuate
Highlights the tendency of something to change or vary.
vary depending on
Focuses on the dependency of variation on a specific factor.
be contingent on variations
Emphasizes that something is conditional upon changes.
depend on fluctuations
Expresses a direct reliance on changes or variations.
be sensitive to change
Highlights the responsiveness of something to alterations.
be liable to vary
Suggests that something is likely to change.
change based on
Focuses on the foundation or reason of that change.
be affected by variations
Indicates the impact of variations on something.
FAQs
How can I correct the phrase "be fluctuated on"?
Replace "be fluctuated on" with more accurate alternatives like "be subject to fluctuations", "vary depending on", or "be influenced by" depending on your intended meaning.
What does "be fluctuated on" incorrectly imply?
The phrase "be fluctuated on" suggests that something is directly being acted upon to cause fluctuation. This is grammatically awkward; "fluctuate" usually describes the action of changing, not the state of being changed by something else. The proper way to say this is "be subject to fluctuations caused by" followed by whatever factor is causing that fluctuation.
Is there a situation where "fluctuated on" is acceptable?
No, the phrase "fluctuated on" is not considered grammatically correct in standard English. It is best to use alternative phrasing to express the intended meaning. For example, you may use a rephrasing such as "fluctuated based on".
What are some professional synonyms for "be fluctuated on"?
In professional contexts, use phrases like "depend on", "be contingent on", or "be affected by" to maintain clarity and grammatical correctness when discussing changes or variations.
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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
75%
Authority and reliability
1.8/5
Expert rating
Real-world application tested