Used and loved by millions
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
various by
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "various by" is not correct and does not convey a clear meaning in written English.
It is unclear when it could be used, as it lacks context and does not form a coherent expression. Example: "The results were various by category." (This sentence is awkward and unclear.)
⚠ May contain grammatical issues
News & Media
Science
Wiki
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
3 human-written examples
He fell in love with a glamorous American art student who would become his wife, and made an experimental film called The Little Donkey – in which a young man, having been taunted by various (by turns) vampish and virginal woman, turns into a toy donkey when a girl begins to touch him.
News & Media
The concept of creativity has defined by various by scholars.
Cries for Help, Various by Padgett Powell is available in bookstores and online.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
It also produces various by-products, such as cobalt, chromium, rhodium, silver, gold, iridium, ruthenium, selenium, tellurium, and sulfur.
News & Media
Biodiesel production from rapeseed oil generates various by-products, for example crude glycerol.
Science
Generally, it is reported that various by-products are generated from the EB irradiation process to remove VOCs.
In case of oxygen limitation, the fungus will produce various by-products like organic acids and polyols.
Science
Physical methods, which include precipitation, ion exchange, membrane filtration, electrochemical destruction, irradiation and adsorption, lead to the formation of sludge and various by-products.
Science
In the nitration reaction, not only the mononitrated main product is formed, but also various by-products via consecutive and parallel reactions.
Science
Various by-products of the cellular metabolism, such as reactive carbonyl species (RCS) are potentially harmful to cells and tissues, and play a role in many physiological and pathological processes.
Science
At the same time, in order to balance the intracellular redox state and to supply ATP during microbial production of 1,3-PD, various by-products were produced, such as acetic acid, lactic acid, succinic acid, and other organic acids as well as alcohols.
Expert writing Tips
Best practice
Avoid using the phrase "various by" in formal writing. Instead, opt for more grammatically correct alternatives such as "varied by" or "influenced by" to ensure clarity and precision.
Common error
Don't use "various by" to indicate cause and effect. This phrase is often misused when attempting to express that something is caused or influenced by different factors. Instead, use "due to various" or "because of various" followed by specific elements.
Source & Trust
78%
Authority and reliability
1.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "various by" functions as a prepositional phrase attempting to connect multiple factors with an outcome. However, it's often grammatically unsound and lacks clear meaning. As Ludwig AI indicates, it is not considered a correct phrase.
Frequent in
News & Media
33%
Science
33%
Wiki
33%
Less common in
Formal & Business
0%
Encyclopedias
0%
Academia
0%
Ludwig's WRAP-UP
In summary, the phrase "various by" is generally considered grammatically incorrect and lacks consistent usage in formal writing. Ludwig AI confirms its incorrectness. While it appears in some contexts such as news and media, its usage is infrequent and often requires substitution with more grammatically sound alternatives like "varied by" or "influenced by". Therefore, it is best to avoid using "various by" in professional or academic writing to maintain clarity and precision.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
varied by
Focuses on the characteristic of changing based on a factor, instead of being acted upon.
different by
Highlights the distinction or dissimilarity introduced by something.
influenced by
Emphasizes the impact or effect something has on something else.
modified by
Indicates an alteration or adjustment made by a particular agent.
affected by
Suggests that something has been acted upon or changed by an external force.
altered by
Implies a change or transformation induced by a specific cause.
determined by
Conveys that something is decided or controlled by a particular factor.
dependent on
Expresses reliance on something else for a specific outcome.
shaped by
Highlights how something has been molded or formed by an influence.
dictated by
Suggests that something is commanded or controlled by something else.
FAQs
What can I say instead of "various by"?
You can use alternatives like "varied by", "influenced by", or "affected by" depending on the context.
Is "various by" grammatically correct?
No, "various by" is generally considered grammatically incorrect. It's better to use phrases like "varied by" or "influenced by" for clearer and more accurate communication.
How can I use "varied by" in a sentence?
Use "varied by" to indicate that something changes depending on a particular factor. For example: "The results varied by category."
What's the difference between "various by" and "varied by"?
"Various by" is generally incorrect and should be avoided. "Varied by" is a grammatically correct phrase used to show that something changes depending on a particular condition or factor.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
78%
Authority and reliability
1.8/5
Expert rating
Real-world application tested