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
are based for
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "are based for" is not correct in standard written English.
It is not a usable expression, as it does not convey a clear meaning in this form. Example: "The conclusions are based for the research findings" should be corrected to "The conclusions are based on the research findings."
⚠ May contain grammatical issues
Science
News & Media
Alternative expressions(20)
are founded on
are grounded in
stem from
are predicated on
rely upon
are reliant on
originate from
derive from
are constructed from
are formulated using
are characterised for
are used for
are substantiated for
are assessed for
are emphasised for
are authorised for
are disaggregated for
are imposed for
are causes for
are preferable for
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
17 human-written examples
He added that the Dish is going to stay in New York City, where he and his two business partners are based, "for the foreseeable future".
News & Media
The eight seeded nations -- the host countries, Argentina, Brazil, France, Germany, Italy and Spain -- will be in one of the eight groups, which are based for this tournament on geographical considerations rather than on estimates of performance.
News & Media
She shunned office space in Santa Monica, where ShoeDazzle and BeachMint are based, for less glamorous space downtown, where 20-something Nasty Gal employees in mesh crop tops, leggings and platform shoes stand out from the paralegals.
News & Media
Displaying an alarming denial about the nature and urgency of the threat, an Army spokesman said there would be no offensive in the tribal region of North Waziristan — where the Afghan Taliban are based — for at least six months and perhaps as long as 12 months.
News & Media
In a separate visit on Friday, captain Steven Gerrard accompanied other team-mates to Oskar Schindler's factory just outside the Krakow city centre, close to where the England squad are based for Euro 2012.
News & Media
The MoD said it was not related to Olympic security and stressed the response was a standard procedure, although the plane flew out of Northolt where some Typhoons are based for the duration of the Games.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
40 human-written examples
Two years later she moved to Kolkata where she was based for the rest of her life.
News & Media
He even altered the book on which it's based for a happier ending.
News & Media
It was his final game in Miami, where the Orioles were based for spring training during much of his career.
News & Media
"Firm conclusions should not be based," for example, on the two samples from one location in Guyana, they added.
News & Media
In addition, a full-size replica was built for shooting in a tank near in Rosarito, Mexico, where the Rose was based for much of the filming.
News & Media
Expert writing Tips
Best practice
When describing the basis of an idea or system, use "are based on" or "are founded on" for clarity and grammatical correctness.
Common error
Avoid using "are based for". The correct phrasing is "are based on". Using "for" in this context creates a grammatically incorrect sentence.
Source & Trust
83%
Authority and reliability
2.4/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "are based for" is an incorrect grammatical construction. It attempts to link a subject with the basis of its existence or reasoning, but it fails to do so effectively. As Ludwig AI points out, this phrase requires correction to "are based on."
Frequent in
Science
50%
News & Media
40%
Wiki
10%
Less common in
Encyclopedias
0%
Formal & Business
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "are based for" is grammatically incorrect and should be avoided. Although Ludwig's examples show its presence in some contexts, including scientific and news media, it's crucial to use the correct form, "are based on", or alternatives like "are founded on" or "are grounded in". This ensures clarity and maintains credibility in writing. Ludwig AI clearly indicates that this phrase should be corrected.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
are founded on
This alternative emphasizes the establishment of something on a particular principle or foundation, suggesting a strong base.
are grounded in
This phrase suggests that something has its origins or justification in a particular set of ideas or facts.
are predicated on
This alternative means that something is affirmed or based on a particular assumption or condition.
rely upon
Focuses on dependence for support or existence.
are reliant on
This phrase indicates dependence on something for support or existence, similar to 'rely upon'.
stem from
Describes the origin or derivation of something.
originate from
Highlights the point of origin or beginning.
derive from
Emphasizes the extraction or obtaining of something from a source.
are constructed from
Focuses on the elements or materials used to build or create something.
are formulated using
Highlights the specific method or approach used in the creation or development of something.
FAQs
How can I correctly use "are based" in a sentence?
The correct form is to use "are based on", indicating the foundation or source. For example, "The conclusions are based on the research findings."
What are some alternatives to using "are based on"?
You can use alternatives such as "are founded on", "are grounded in", or "stem from" depending on the specific meaning you want to convey.
Is "are based for" grammatically correct?
No, "are based for" is not grammatically correct. The correct phrasing is "are based on". Using "for" in this context creates a grammatical error.
What's the difference between "are based on" and "are predicated on"?
"Are based on" generally means something is founded or originates from something else. "Are predicated on" implies something is affirmed or depends on a particular condition or assumption.
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
2.4/5
Expert rating
Real-world application tested