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
seen of
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "seen of" is not grammatically correct.
You may be trying to use the phrase "seen by," which is sometimes used in written English, usually to indicate that one thing was witnessed or observed by another. Example: The suspect was seen by three witnesses.
⚠ May contain grammatical issues
News & Media
Science
Wiki
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
53 human-written examples
That remains to be seen, of course.
News & Media
"What I've seen of it is glorious".
News & Media
And that was the last anybody had seen of Waleed.
News & Media
And that's the last anyone has seen of her.
News & Media
NBC executives liked what they'd seen of Couric.
News & Media
From what I've seen of the photographic evidence, phooey.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
7 human-written examples
Last we'll see of them".
News & Media
"We'll see, of course.
News & Media
What you see of them is authentic".
Wiki
(See Tropic of Cancer).
Encyclopedias
See economy of scale.
Encyclopedias
Expert writing Tips
Best practice
Avoid using the phrase "seen of" in formal writing. Instead, use "seen by" or other more grammatically accepted alternatives to maintain clarity and credibility.
Common error
Many writers mistakenly use "of" instead of "by" after "seen" when indicating who or what is doing the seeing. Always use "by" to correctly attribute the act of seeing.
Source & Trust
83%
Authority and reliability
2.2/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "seen of" functions incorrectly as a prepositional phrase aiming to indicate agency or possession, which is grammatically flawed. Ludwig AI identifies that the correct preposition to use after "seen" to indicate the observer is "by."
Frequent in
News & Media
61%
Science
17%
Wiki
7%
Less common in
Encyclopedias
3%
Formal & Business
2%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "seen of" appears frequently across various sources, but it's generally considered grammatically incorrect. Ludwig AI highlights that the correct form is "seen by" when indicating the observer or agent. While you might encounter "seen of" in informal contexts, it's best to avoid it in formal writing to maintain clarity and credibility. Remember to use "seen by" or other alternatives like "viewed by" and "observed by" for grammatically sound writing. Although "seen of" is very common, its usage is not recommended.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
seen by
Replaces the preposition to indicate the subject doing the seeing.
viewed by
Uses a different verb with a similar meaning and corrects the preposition.
observed by
Offers a more formal alternative with the correct preposition.
witnessed by
Implies a more direct and personal form of seeing, with correct preposition.
noticed by
Suggests a more casual observation, with the correct preposition.
apparent to
Shifts the focus to the visibility of something, using a correct preposition.
visible to
Highlights the capability of being seen, using the correct preposition.
detected by
Indicates discovery through sight, using the correct preposition.
identified by
Suggests a more specific recognition, using the correct preposition.
spotted by
Implies a quick or chance sighting, using the correct preposition.
FAQs
What's a more grammatically correct alternative to "seen of"?
The correct alternative is usually "seen by", which indicates who or what is doing the seeing. For example, instead of "The movie was seen of many people", say "The movie was seen by many people".
Is "seen of" ever correct?
In standard English, "seen of" is generally considered grammatically incorrect. It's best to avoid this phrasing in formal writing. Although it appears in many sources, that doesn't make it correct.
How can I remember to use "seen by" instead of "seen of"?
Think of "by" as indicating the agent or person performing the action. Just like you'd say "written by" or "directed by", use "seen by" to show who or what did the seeing.
What does it mean if something is "seen of" someone in informal language?
While not grammatically correct, if someone uses "seen of" informally, they likely mean that something was witnessed or observed by that person, similar to "seen by".
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
2.2/5
Expert rating
Real-world application tested