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
concern person
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "concern person" is not correct in English.
Did you mean "concerned person"? If this is the case, you can use it to refer to someone who is worried or has an interest in a particular issue or situation. Example: "The concerned person reached out to the authorities to report the suspicious activity in the neighborhood."
⚠ May contain grammatical issues
Alternative expressions(5)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified similar examples from authoritative sources
Similar Expressions
59 human-written examples
Similarly, on Wallace's view, the normative principles of fairness that inform our practices of holding morally responsible concern persons.
Science
A 69% increase in the number of adults with type 2 DM in developing countries is estimated to occur between 2010 and 2030, and the biggest proportion of this increase will concern persons aged between 40 and 60 years.
Science
#Extensive marking on verbs of inflectional information concerning person.
Wiki
All of this can be disconcerting to a parent or concerned person.
News & Media
For the average concerned person, Wilson said, "there's not much you can do, other than probably stay out of caves".
News & Media
The military jurisdictions judge all cases concerning offenders responsible to the army and, in time of war, those concerning persons accused of treason.
Encyclopedias
The fourth hypothesis concerns persons — in the sense of institutional role occupants —who are corrupted.
Science
On the other hand, other models have hypothesized the existence of different domains for storing information concerning persons and things (e.g. the famous Bruce and Young model [35] as well as neurological [36], [37] and neuroimaging studies [8]).
Science
In line with earlier studies concerning persons with diabetes, depression was relatively common, and 7% had other mental problems.
Science
Around one third of the data in the 1950 90 mortality cohort analysed in LSS12 concerns persons who received 0 – 20 mSv instantaneous exposure in 1945.
At the time of the writing of this report, further details concerning persons lost to follow-up were not yet available.
Science
Expert writing Tips
Best practice
When intending to describe someone who is worried or has an interest, use the phrase "concerned person" instead of "concern person". This ensures grammatical correctness and clarity.
Common error
Avoid using "concern" directly before "person" as if it were an adjective. "Concern" is typically a verb or a noun. Instead, use "concerned" as the adjective form to accurately describe the person.
Source & Trust
60%
Authority and reliability
1.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "concern person" is grammatically incorrect. "Concern" functions as a verb or a noun, not an adjective. The correct adjectival form is "concerned". Ludwig AI indicates that the proper phrase is "concerned person".
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 "concern person" is grammatically incorrect in English. As Ludwig AI points out, the correct phrasing to describe someone who is worried or interested is "concerned person". Using "concerned" as an adjective accurately conveys the intended meaning. This correction is crucial for maintaining clarity and credibility in both formal and informal communication. Remember to avoid using "concern" directly as an adjective to prevent grammatical errors. Other alternatives, depending on the context, could be "person of concern", "interested party", or "stakeholder".
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
concerned person
Changes "concern" from a verb to an adjective, correctly modifying "person" to indicate someone who is worried or interested.
worried individual
Directly expresses the worry or anxiety of a person, replacing "concern" with a synonym.
person of concern
Reverses the order and uses "of" to link "person" and "concern", indicating someone who is being worried about or is important.
party concerned
A more formal way of saying “the relevant person” in legal or official settings.
individual of interest
Replaces "concern" with "interest", indicating someone who is being observed or investigated.
affected individual
Indicates a person who is impacted by a particular situation, replacing "concern" with a more direct description of impact.
relevant person
Indicates someone who is connected to or important in a particular context, focusing on relevance rather than worry.
person involved
Highlights the involvement of an individual in a situation, shifting the focus from worry to participation.
interested party
Uses a more formal term to describe someone with a vested interest in a matter, replacing "concern" with a legal or business-oriented term.
stakeholder
Highlights someone with a vested interest or stake in a situation, often used in business contexts.
FAQs
How do I properly use the word "concern" when referring to a person?
Instead of "concern person", use "concerned person" to describe someone who is worried or interested. You can also use "person of concern" to indicate someone who is being worried about.
What is a more formal alternative to "concern person"?
While "concern person" is not grammatically correct, a more formal alternative to "concerned person" could be "interested party" or depending on the context, "stakeholder".
Is "concern person" grammatically correct?
No, "concern person" is not grammatically correct. The correct phrase is "concerned person", where "concerned" acts as an adjective.
Can I use "concern" as an adjective?
No, "concern" is primarily a verb or a noun. To use it as an adjective, use the form "concerned", as in "concerned person".
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