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
is commonly believed
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is commonly believed" is correct and usable in written English.
You can use the phrase when you want to refer to a commonly held opinion or belief. For example, "It is commonly believed that certain foods can help to prevent heart disease."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(20)
is commonly referred
is popularly known as
enjoys a good reputation
is widely regarded
is held in high esteem
is universally believed
is commonly regarded
is traditionally believed
is generally accepted
is popularly understood
is understood to be
is deemed to be
is generally thought
is known
is usually believed
is commonly used
is generally considered
is widely accepted
is well-thought-of
is widely believed
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
60 human-written examples
And dredging is not as effective as is commonly believed.
News & Media
(Although Ms. Escalanti is an American Indian, she is commonly believed to be white).
News & Media
(It is commonly believed that Chomsky never sleeps, but this is not the case).
News & Media
(Malthus) Third, it is commonly believed that individual people can change the economy around.
Workplace danger is spread across a far wider array of industries than is commonly believed.
News & Media
It is commonly believed lifting is dangerous and the back should be straight during lifting.
It is commonly believed that cancer is a multistage, polygenic disease.
It is commonly believed that the peer-review process is reliable and consistent.
Science
Endometriosis is commonly believed to originate from functionalis endometrium and adenomyosis from basalis endometrium.
Witchcraft is commonly believed in, along with a variety of pagan or semipagan supernatural creatures.
Encyclopedias
The degree of control that people actually have over their obesity is drastically more limited than is commonly believed.
News & Media
Expert writing Tips
Best practice
Use "is commonly believed" when introducing a concept or idea that is generally accepted but may not be entirely accurate or supported by evidence. This phrasing allows you to present a common viewpoint before offering a nuanced perspective or counter-argument.
Common error
Avoid using "is commonly believed" when referring to niche or highly specific knowledge. Ensure the belief you're referencing is genuinely widespread and not limited to a particular group or field.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is commonly believed" functions as an introductory expression, setting the stage to present a prevalent notion, often followed by a contrasting perspective. Ludwig AI confirms its correct and usable nature in English writing.
Frequent in
Science
30%
News & Media
30%
Academia
20%
Less common in
Encyclopedias
5%
Wiki
5%
Formal & Business
10%
Ludwig's WRAP-UP
The phrase "is commonly believed" serves as a pivotal linguistic tool, particularly in introducing concepts that are widely held but potentially lack definitive evidence. As Ludwig AI confirms, it's grammatically sound and versatile, appearing frequently across diverse fields like science, news, and academia. Its purpose is to present a prevalent idea before offering nuanced perspectives or counter-arguments. While often employed in neutral and formal contexts, remember to ensure that the belief is genuinely widespread and not confined to specific groups to avoid overgeneralizations. By understanding its nuances, you can enhance your writing and engage your audience effectively.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is widely accepted
Focuses on the broad agreement or endorsement of an idea.
is generally thought
Emphasizes the thinking or perception of most people.
is popularly understood
Highlights a common level of understanding among the public.
is conventionally assumed
Suggests that the belief is based on tradition or convention.
is often presumed
Implies the belief is taken for granted without concrete evidence.
is traditionally considered
Indicates that the belief has been held for a long time.
is largely perceived
Focuses on the way something is viewed by most people.
is a prevalent notion
Highlights how widespread the idea is.
is a common assumption
Suggests that belief is taken for granted without proof.
is rumored
Suggests the belief might not be based on facts or evidence.
FAQs
How can I use "is commonly believed" in a sentence?
Use "is commonly believed" to introduce a generally held idea, often followed by a contrasting or clarifying statement. For example, "It "is commonly believed" that exercise always leads to weight loss, but diet plays a significant role as well."
What are some alternatives to "is commonly believed"?
You can use alternatives like "is widely accepted", "is generally thought", or "is popularly understood" depending on the nuance you want to convey.
Is it okay to use "is commonly believed" even if the belief is incorrect?
Yes, "is commonly believed" is often used to introduce a misconception before correcting it. It's a way to acknowledge a widespread belief before presenting evidence to the contrary.
What's the difference between "is commonly believed" and "is known"?
"Is commonly believed" refers to a belief that is widely held, but not necessarily proven. "Is known" implies established fact or evidence. Using "is known" suggests a higher degree of certainty.
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
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested