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
established to be
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "established to be" is not correct in standard written English.
It is typically used in contexts where something is set up or recognized for a specific purpose or role. Example: "The committee was established to be a guiding force in the community."
Science
News & Media
Formal & Business
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
Brass and reeds came together on what was established to be a central melody.
News & Media
"The Mc prefix is well established to be McDonald's," a company spokesman said.
News & Media
They have cynically allowed even the excessive quotas they had established to be flouted with impunity.
News & Media
"[Great Barrier Reef Marine Park Authority] was established to be the reef's guardian.
News & Media
"If a person is established to be unfit to plead, he should not be extradited".
News & Media
The evidence has been clear for many years and any risks have been established to be tiny.
News & Media
It was established to be a watchdog.
News & Media
What was found was eventually established to be coconut shell.
News & Media
The PPEDA film is established to be strongly cell-adherent.
Science
Therefore, compound 1 was established to be 4′-O-acetylcimigenol-3-O-β-d-xylopyranoside.
Optimum conditions for F− adsorption were established to be 30 min.
Science
Expert writing Tips
Best practice
When using "established to be", ensure that the context clearly indicates who or what made the determination. Providing the source of the establishment enhances credibility.
Common error
Avoid using "established to be" in informal writing or speech. This phrase is generally more appropriate for formal, scientific, or legal contexts. Simpler alternatives may be more suitable for casual communication.
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "established to be" functions as a passive voice construction, indicating that something has been definitively recognized or proven to have a specific characteristic or quality. Ludwig examples show its usage in diverse contexts, such as scientific research and news reporting.
Frequent in
Science
59%
News & Media
30%
Formal & Business
5%
Less common in
Wiki
3%
Encyclopedias
0%
Reference
0%
Ludwig's WRAP-UP
In summary, "established to be" is a passive voice construction employed to assert that something has been definitively proven or recognized. While not incorrect, according to Ludwig AI, it's more appropriate for formal and scientific writing, signaling certainty and authority. Its prevalence in academic and scientific contexts highlights this formality. When using this phrase, make sure your context requires a more formal structure, if not, consider alternatives like ""proven to be"", or ""determined to be"". Ensure that the source of the establishment is clearly identified to enhance credibility.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
proven to be
Replaces "established" with "proven", emphasizing a demonstration of truth or validity.
shown to be
Replaces "established" with "shown", focusing on evidence or demonstration supporting a claim.
determined to be
Substitutes "established" with "determined", focusing on the act of deciding or concluding something after investigation.
confirmed to be
Substitutes "established" with "confirmed", emphasizing validation or corroboration of an attribute.
found to be
Uses "found" instead of "established", indicating a discovery through observation or search.
recognized as
Replaces "established to be" with "recognized as", highlighting public or authoritative acceptance.
verified as
Replaces "established to be" with "verified as", suggesting something has been confirmed or validated.
deemed to be
Employs "deemed" in place of "established", suggesting a judgment or opinion is being expressed.
considered to be
Uses "considered" instead of "established", indicating a reflective assessment or evaluation.
ascertained to be
Uses "ascertained" in place of "established", highlighting the effort to find something out for certain.
FAQs
How can I use "established to be" in a sentence?
Use "established to be" to indicate that something has been definitively proven or recognized. For example, "The link between smoking and lung cancer is "established to be" significant."
What are some alternatives to "established to be"?
Alternatives include "proven to be", "determined to be", or "found to be". The best choice depends on the specific nuance you want to convey.
Which is correct: "established to be" or "established as"?
"Established to be" emphasizes the process of becoming recognized, while "established as" focuses on the current status. Use "established to be" when you want to highlight the confirmation or proof of something.
In what kind of writing should I use "established to be"?
Use "established to be" in formal writing, such as scientific reports, legal documents, or academic papers. This phrase is appropriate when you need to convey a sense of authority and 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
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested