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 believed for
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "is believed for" is not correct and does not convey a clear meaning in written English.
It is not a standard expression and may confuse readers. Example: "It is believed for many years that the theory is valid."
⚠ 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
5 human-written examples
It is believed, for example, that the buyer of the star piece, "The Golden Calf", also purchased two other works.
News & Media
Redistribution also needs a fresh rhetoric that strikes a chord – not least because the politician mouthing the words, is believed – for a period at least.
News & Media
It is believed, for example, that she went blind as a child and that her sight was restored -- a miracle created by prayer at the shrine of a saint.
News & Media
In addition, the sound of the bell is thought to have supernatural properties; it is believed, for example, that it can be heard in the underworld.
Wiki
It is believed, for this subgroup of patients, that such de-escalating management will benefit both patients and health care systems.
Human-verified similar examples from authoritative sources
Similar Expressions
55 human-written examples
Seeing is believing for the manager.
News & Media
We are thankful to Sally Crook and Stefan Chojnicki from Seeing is Believing for their continuous support with the study.
All people are most credulous when they are most happy.... Almost everything will be believed for a little while".
News & Media
These were rare cases as mentioned above so that it was believed for the interview to be held in English.
It was believed for long time that it was almost impossible to grow a high-quality gallium nitride (GaN) single crystal.
"Women are being believed, for the first time ever," Gloria Steinem told HuffPost earlier this year.
News & Media
Expert writing Tips
Best practice
Avoid using the phrase "is believed for" in your writing. Use grammatically correct alternatives like "is believed to be" or "is thought to be" to ensure clarity and accuracy.
Common error
A common mistake is using "for" instead of "to be" after "is believed". Always ensure that when you want to express a belief about something, the correct form is "is believed to be".
Source & Trust
60%
Authority and reliability
1.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "is believed for" is grammatically incorrect and does not function as a standard expression in English. Ludwig AI indicates that it is not a valid construction. The examples provided either show misuse or components of different, valid phrases.
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
In summary, the phrase "is believed for" is grammatically incorrect and should be avoided in writing and speech. As Ludwig AI suggests, this phrase isn't a standard expression and can confuse readers. Correct alternatives, such as "is believed to be", "is thought to be", or "is considered as", should be used instead to accurately convey the intended meaning. Given its lack of proper usage, this phrase has no discernible frequency across different contexts.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
is believed to be
Adds the infinitive "to be" to create a grammatically correct expression indicating a generally held belief.
is thought to be
Replaces "believed" with "thought", offering a similar meaning with a slightly less formal tone.
is considered as
Uses "considered as" instead of "believed for", providing a different perspective on general perception.
is regarded as
Employs "regarded as" to convey a sense of formal assessment or evaluation.
is deemed to be
Substitutes with "deemed to be" for a more official or authoritative tone.
is known to be
Uses "known to be" to emphasize established or widely recognized information.
is understood to be
Replaces with "understood to be" to focus on common knowledge or accepted understanding.
is accepted as
Employs "accepted as" to indicate general agreement or consensus.
is supposed to be
Substitutes with "supposed to be" for a sense of expectation or common assumption.
is rumored to be
Uses "rumored to be" to indicate information that is circulating but not confirmed.
FAQs
What is the correct way to use "is believed" in a sentence?
The correct form is "is believed to be" followed by the characteristic or function that is believed. For example, "The new policy "is believed to be" more effective".
Can I use "is believed for" instead of "is believed to be"?
No, "is believed for" is grammatically incorrect. The correct phrasing is "is believed to be". Using "for" in this context does not create a meaningful or grammatically sound sentence.
What are some alternatives to "is believed to be"?
Alternatives include phrases like "is thought to be", "is considered to be", or "is regarded as", depending on the nuance you want to convey.
Is there a context where "is believed for" might be correct?
The phrase "is believed for" is generally incorrect. If you encounter it, it's likely a grammatical error. Always opt for ""is believed to be"" or other similar, grammatically sound alternatives.
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
1.5/5
Expert rating
Real-world application tested