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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
has been observed
Grammar usage guide and real-world examplesUSAGE SUMMARY
'has been observed' is correct and usable in written English.
You can use it to indicate that something was observed in the past and the result of that observation is still relevant today. For example: "The effect of the treatment has been observed to be beneficial for patients with this condition."
✓ Grammatically correct
Science
News & Media
Academia
Alternative expressions(20)
is already finalized
has been transported
will be considered
has been honored
will present
is on track to be finalized
had been completed
has now ended
has successfully preserved
has been deteriorated
is going to be presented
will be revised
will be permitted
will be handed in
has been redeployed
is arranged for
has been executed
will be disseminating
will be followed
has come into effect
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
Similar observation has been observed in patients with ADEM [12].
Guess what has been observed?
News & Media
This has been observed in experiments.
Encyclopedias
No transcrystallinity has been observed.
Science
This has been observed from the next wing, Room 2365.
News & Media
This phenomenon has been observed in many auctions.
News & Media
So far, however, no signal has been observed.
News & Media
This has been observed (Philipona 2004, Evans 2006, Wang 2009).
News & Media
Cows eat grass this has been observed for eons.
region of the sky has been observed by Chandra.
Academia
Incentive learning has been observed predominantly in instrumental conditioning studies.
Science & Research
Expert writing Tips
Best practice
Use "has been observed" to report findings and phenomena in research, observations, and general reports. This phrase indicates that something was noticed or recorded and is generally accepted as true.
Common error
Overusing passive voice can make writing seem vague and impersonal. While "has been observed" is grammatically correct, consider whether an active voice construction (e.g., "Researchers observed...") might be clearer and more direct.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "has been observed" functions as part of the passive voice construction of the verb 'to observe'. It's typically used to report a finding or phenomenon, emphasizing the fact that something was noticed or recorded, as supported by Ludwig examples and Ludwig AI's analysis.
Frequent in
Science
64%
News & Media
23%
Academia
9%
Less common in
Wiki
3%
Formal & Business
1%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, "has been observed" is a grammatically sound and frequently used phrase to report findings objectively. Ludwig AI confirms its correct usage. It's most common in scientific and academic writing, conveying observations without necessarily emphasizing the observer. While acceptable, writers should be mindful of passive voice overuse and consider active voice alternatives for clarity.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
was noted
Emphasizes the act of noting something, often implying a more formal recording of the observation.
has been noticed
Highlights that something has come to someone's attention.
was detected
Suggests that something was found or identified, often through specific methods or instruments.
has been detected
Like "was detected", but includes the temporal component that the detection happened in the past and the finding is still relevant.
it is seen
A more concise way to state that something is visible or apparent.
one can see
Highlights the potential for anyone to observe the phenomenon.
it is apparent
Focuses on the clarity or obviousness of something.
it is evident
Similar to "it is apparent", but may suggest stronger proof or confirmation.
we find that
Common in research papers, indicates a discovery or finding.
studies indicate
Similar to "we find that", but refers to the cumulative evidence from multiple studies.
FAQs
How can I use "has been observed" in a sentence?
Use "has been observed" to indicate that something was noticed or recorded. For example, "A similar trend "has been observed" elsewhere in the nation."
What's the difference between "has been observed" and "was observed"?
"Has been observed" implies the observation has ongoing relevance or is part of an established pattern, whereas "was observed" refers to a single, completed observation in the past. For example, "Waterlogging "has been observed" before rehabilitation in Mubuku irrigation scheme" versus "The comet was observed on July 16, 1994."
What are some alternatives to "has been observed" in scientific writing?
In scientific writing, you can use more formal alternatives like "was detected", "was noted", or "studies indicate" to maintain a professional tone.
Is it better to use active or passive voice when describing observations?
While "has been observed" (passive voice) is acceptable, using active voice (e.g., "Researchers observed") can make your writing more direct and engaging. The choice depends on the context and desired emphasis.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested