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
was seen in
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "was seen in" is correct and usable in written English.
You can use it when you want to describe a person or thing being spotted in a particular location. For example, "The rare panda was seen in the bamboo forest last night."
✓ Grammatically correct
Science
News & Media
Academia
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
No difference was seen in overall complications.
Science
Possible toxicity was seen in <5%.
Science
A similar observation was seen in MM_2323.
Science & Research
A similar trend was seen in Queensland.
News & Media
Cytomegalovirus pneumonitis was seen in 4.3% of respiratory infections.
Academia
Partial enhancement was seen in one tumor.
Academia
Graft rejection was seen in one autopsy.
Academia
The show was seen in reruns.
News & Media
Inflammatory CNVM was seen in two patients.
No relationship was seen in Tunisia.
IVH was seen in 88 % of cases.
Expert writing Tips
Best practice
When using "was seen in", ensure the subject is clearly defined and the context provides specific details about where the subject was observed. This enhances clarity and prevents ambiguity.
Common error
Avoid overusing passive voice constructions like "was seen in", as excessive use can make writing sound indirect and less engaging. Consider using active voice where appropriate to improve sentence flow and clarity.
Source & Trust
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "was seen in" functions as a passive construction, indicating that something was observed or detected within a specific context. As Ludwig AI confirms, this phrase is grammatically correct and widely used. Examples from Ludwig show it appears in various domains, often to denote findings or observations.
Frequent in
Science
68%
News & Media
19%
Academia
13%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, the phrase "was seen in" is a grammatically sound and widely used passive construction. According to Ludwig AI, its function is to report an observation or detection within a particular context. It frequently appears in science, news, and academic sources, showing its broad applicability. While versatile, it's important to use it judiciously to avoid overusing passive voice and to maintain clarity in writing. Common alternatives include "was observed within" and "was detected in", offering subtle variations in meaning.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
was observed within
Replaces "seen" with "observed", implying a more formal or scientific observation.
was found in
Replaces "seen" with "found", implying discovery during a search or investigation.
was detected in
Substitutes "seen" with "detected", suggesting discovery or identification.
was identified within
Replaces "seen" with "identified", emphasizing recognition or classification.
was noticed in
Changes "seen" to "noticed", implying a casual or less formal observation.
appeared in
Changes "seen" to "appeared", indicating emergence or visibility.
was present in
Replaces "seen" with "present", highlighting existence or presence.
occurred in
Shifts the focus to the occurrence of an event rather than observation.
existed within
Substitutes "seen" with "existed", focusing on the presence or occurrence of something.
manifested in
Replaces "was seen" with "manifested", suggesting a visible or apparent appearance.
FAQs
How can I use "was seen in" in a sentence?
Use "was seen in" to indicate that something was observed or detected within a particular context or location. For example, "The error "was seen in" the log file."
What are some alternatives to using "was seen in"?
Depending on the context, you can use phrases like "was observed within", "was detected in", or "was identified within" to convey similar meanings.
When is it appropriate to use the passive voice construction "was seen in"?
The passive voice construction "was seen in" is appropriate when the action is more important than the actor or when the actor is unknown or irrelevant. However, avoid overuse to maintain clarity and engagement.
How does the meaning of "was seen in" differ from "occurred in"?
"Was seen in" implies observation, while "occurred in" indicates that something happened or took place in a specific location or context. The former emphasizes visibility, whereas the latter emphasizes occurrence.
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
86%
Authority and reliability
4.5/5
Expert rating
Real-world application tested