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
have been believed
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "have been believed" is correct and usable in written English.
It can be used to indicate that something has been accepted as true or valid over a period of time, often in a passive construction. Example: "The theories proposed by the scientist have been believed by many in the academic community for decades."
✓ Grammatically correct
Science
News & Media
Alternative expressions(20)
have been accepted
have been considered
have been regarded
is believed
have been assumed
have been understood
have been perceived
have been envisioned
have been been
have been viewed
have been attributed
have been imagined
have been suggested
have been felt
have been feeling
have been considering
have been consider
have been prepared
have been kept
have been dismissed
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
She doesn't seem to have been believed.
News & Media
Yet such disclosures would undoubtedly not have been believed.
News & Media
And, as Ted's sister, I wouldn't have been believed".
News & Media
Epidermal Langerhans cells (LCs) have been believed to function as professional antigen-presenting cells (APCs).
"This suggested that they're not truly blind as would have been believed before," said Brown.
News & Media
The ruling stated that the surveillance was "not proportionate and could not reasonably have been believed to be proportionate".
News & Media
Tail paint has been successful in identifying estrus, but behaviors such a licking or rubbing have been believed to remove the paint and lead to false-positives.
Impurities in Czochralski silicon (Cz-Si) used for ultra large-scaled-integrated (ULSI) circuits have been believed to deteriorate the performance of devices.
Science
Two-dimensional (2D) materials have been believed to be one of the most important classes of materials due to their plentiful unusual properties.
In the minds of mankind they have been leagued with witches and malignant evil spirits, or even have been believed to personify the Evil One.
News & Media
Begomoviruses including TYLCV have been believed to be inoculated by only whitefly-mediated transmission and artificial inoculation with an infectious clone27.
Science & Research
Expert writing Tips
Best practice
Use "have been believed" when indicating that a concept or idea has gained acceptance or credibility over time. Ensure the context clearly shows who held the belief and why.
Common error
Avoid using "have been believed" without specifying who held the belief. Unclear attribution can weaken the statement and make it seem unsubstantiated.
Source & Trust
87%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "have been believed" functions as a passive construction, indicating that a belief was held or accepted by a group of people over a period of time. Ludwig AI confirms that the phrase is correct and usable, as demonstrated in numerous examples.
Frequent in
Science
50%
News & Media
44%
Academia
6%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
The phrase "have been believed" is a common and grammatically sound way to indicate a belief that was held over time. Ludwig AI shows that the expression is widely used in both scientific and news contexts, with occasional appearances in academic writing. It is important to be aware of potential misuse such as failing to clarify who held the belief. Alternatives such as ""have been considered"" or ""have been thought"" can be used to express similar meanings with slightly different nuances.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
have been considered
Changes the verb to 'considered', implying a more thoughtful or deliberate evaluation.
have been thought
Replaces 'believed' with 'thought', suggesting a less firm conviction or more speculative idea.
have been regarded
Uses 'regarded' to indicate how something is viewed or esteemed by others.
have been assumed
Employs 'assumed' to suggest a presumption made without concrete evidence.
were once believed
Adds 'once' to emphasize that the belief is no longer current.
have been understood
Substitutes 'believed' with 'understood', implying comprehension or agreement.
have been accepted
Uses 'accepted' to indicate a general agreement or approval.
were traditionally believed
Highlights the historical or customary nature of the belief.
have been perceived
Replaces 'believed' with 'perceived', indicating a subjective interpretation.
have come to be believed
Adds 'come to be' to show a gradual process of acceptance over time.
FAQs
How can I use "have been believed" in a sentence?
Use "have been believed" to express that something was accepted as true over a period, often before being disproven or re-evaluated. For example, "It have been believed that the Earth was flat until scientific evidence proved otherwise."
What's a good alternative to "have been believed"?
Alternatives include "have been considered", "have been thought", or "have been regarded", depending on the nuance you wish to convey.
Is it correct to say "was believed" instead of "have been believed"?
Both are correct, but "was believed" usually refers to a belief held at a specific point in the past, while "have been believed" implies a belief held over a longer duration or period leading up to the present.
What is the difference between "have been believed" and "is believed"?
"Is believed" suggests a current belief, while "have been believed" indicates a belief that was held in the past and may or may not be currently held. The phrase "is believed" suggests a more immediate or present-day perspective on the belief.
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
87%
Authority and reliability
4.6/5
Expert rating
Real-world application tested