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
commonly existed
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "commonly existed" is not correct in standard English usage.
It is typically used to describe something that was prevalent or frequently found in the past, but the verb "existed" does not fit well with "commonly" in this context. Example: "Dinosaurs commonly existed during the Mesozoic era."
⚠ May contain grammatical issues
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
22 human-written examples
Anatase and rutile phase that are commonly existed in all samples can be seen in Fig. 1.
Science
In addition, they have good electron transport properties that alleviate the characteristic of fast charge recombination which is commonly existed in TMOs [20, 21, 22].
Science
In addition, transmission bands around 2900 cm−1 ascribing to C H stretching, are commonly existed in organic materials and are not characteristic.
Science
The saturation nonlinearity is perhaps the most commonly existed one in control applications of fractional nonlinear systems that should be compensated by a proper method.
Science
This dual-directional fluorescent biosensor overcame the selectivity problem commonly existed in the traditional mono-directional fluorescence detection mode and owned perfect analysis applications in biochemical DNA monitoring.
The precipitate-free zones (PFZs) commonly existed near the grain boundary in the gauge sections of specimens after long-term creep.
Science
Human-verified similar examples from authoritative sources
Similar Expressions
38 human-written examples
Eccentrically loaded reinforced concrete columns are commonly exist in practice due to the existence of some bending moments.
These modern dolomites develop mainly under conditions of high salinity (hypersalinity), which commonly exist in arid regions across supratidal mud flats as well as on the flat, saline plains and playa lake beds known as sabkhas.
Encyclopedias
Entity aliases commonly exist.
Science
Dynamic batch processing commonly exists in production or business processes.
Time delays commonly exist in the real world.
Expert writing Tips
Best practice
Avoid using the phrase "commonly existed". Instead, opt for stronger and more grammatically correct alternatives like "commonly found", "frequently occurred", or "was commonplace" to convey the intended meaning effectively.
Common error
Don't directly replace phrases like "was common" with "commonly existed". While seemingly similar, "commonly existed" is awkward and less accepted. Instead, rephrase to use more established alternatives to improve clarity and grammatical correctness.
Source & Trust
60%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "commonly existed" attempts to function as an adverb-modified verb, aiming to describe how an action (existence) occurred. However, as Ludwig AI suggests, this phrasing is not grammatically sound or commonly accepted in standard English. Therefore, it's crucial to use alternative expressions to convey the intended meaning more effectively.
Frequent in
Science
0%
News & Media
0%
Formal & Business
0%
Less common in
Science
0%
News & Media
0%
Formal & Business
0%
Ludwig's WRAP-UP
The phrase "commonly existed" is flagged by Ludwig AI as not correct in standard English usage. While the individual words are valid, their combination creates an awkward and less accepted expression. The intended meaning is to convey the prevalence or frequent occurrence of something in the past. To achieve this, it is recommended to use alternatives such as "commonly found", "frequently occurred", or "was commonplace", which are grammatically sounder and more widely recognized. Using these alternatives will enhance clarity and credibility in writing.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
commonly found
Replaces the verb "existed" with "found", creating a more grammatically sound and common expression.
was commonplace
Replaces the entire phrase with an adjective describing the frequent or widespread nature of something.
frequently occurred
Substitutes both words with synonyms, maintaining the sense of regular occurrence but using stronger verbs.
typically occurred
Implies that the event was a usual or expected occurrence.
widely present
Indicates that something is encountered in many places or situations.
commonly observed
Replaces "existed" with "observed", suggesting that the item or concept was noted or detected regularly.
prevalently existed
Uses "prevalently" to emphasize widespread existence, although this remains somewhat awkward.
routinely happened
Conveys that events or situations took place on a regular basis.
habitually existed
Highlights something existing as a habit, although this is less common usage.
generally prevailed
Shifts the focus to the idea of widespread dominance or acceptance.
FAQs
What's a better way to say "commonly existed"?
Alternatives include "commonly found", "frequently occurred", "widely present", or "was commonplace". The best choice depends on the specific context.
Is "commonly existed" grammatically correct?
While the individual words are correct, their combination is not standard English. It's better to use a different phrasing like "commonly found" or "was commonplace".
When should I use "commonly found" instead of "commonly existed"?
Since "commonly existed" is not considered standard English, it's generally better to use "commonly found" in all cases where you intend to convey that something was frequently present or discovered.
What is the difference between "commonly existed" and "commonly exists"?
"Commonly exists" refers to something that is currently prevalent, while "commonly existed" attempts to describe something that was prevalent in the past. However, the latter is not a standard or recommended phrasing; alternatives like "was commonplace" are preferred.
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
60%
Authority and reliability
2.8/5
Expert rating
Real-world application tested