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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
observed doing
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "observed doing" is correct and usable in written English.
It can be used to describe witnessing someone engaged in a particular action or activity. Example: "The teacher observed the students doing their group work quietly."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(1)
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
16 human-written examples
I told them if they are observed doing it they are going to jail.
News & Media
And it's not just sharks; orcas have been observed doing the same to stingrays too.
News & Media
"It is daylight and you do not want to be observed doing what you are about to do". Huntley's choice of Common Drove was "clever" and showed cunning.
News & Media
Presumably, if mum worked in an office and her 11-year-old was observed doing some typing on a "bring your child to work" day, all would have been well; adorable, even.
News & Media
They give them to people who made them smile or they saw help someone or were kind in some way, to pass on to someone else observed doing the same.
News & Media
Perhaps, for instance, you actively love shopping for shoes, but since there's another reason to do it – to obtain a pair of shoes – you're unlikely to fear being observed doing it without others.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
44 human-written examples
Which side of the "roped-off area" that divides observer from observed does a writer, remembering her past, occupy?
News & Media
Students observed didn't seem to be suffering from either complaint.
News & Media
Executives at the most successful organizations we've observed did just that.
News & Media
As another "WW," Walt Whitman, famously observed, "Do I contradict myself, Very well, then, I contradict myself.
Academia
Americans, he observed, don't seem to care that their neighbors hold to false versions of the faith.
News & Media
Expert writing Tips
Best practice
Use "observed doing" to clearly indicate that someone has directly witnessed an action being performed. This phrase is especially useful in formal reports or when documenting empirical observations.
Common error
Avoid using incorrect tenses that could confuse the timing of the observation. For example, instead of "observing doing", use "observed doing" to indicate that the observation has already occurred.
Source & Trust
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "observed doing" functions as a participial phrase, where "observed" acts as a past participle modifying an implied subject. It indicates that someone or something has been witnessed in the process of performing an action, as supported by Ludwig examples.
Frequent in
News & Media
40%
Science
30%
Academia
30%
Less common in
Formal & Business
0%
Wiki
0%
Encyclopedias
0%
Ludwig's WRAP-UP
In summary, the phrase "observed doing" is a grammatically sound and readily understandable construction used to convey that someone or something has been witnessed performing an action. According to Ludwig, it is generally considered correct and is employed across various domains, including news, science, and academia. While not exceedingly common, it effectively communicates direct observation. It is important to be mindful of the correct tense and the level of formality depending on the context. Alternatives like "witnessed performing" or "seen carrying out" can be used to add variety to your writing while maintaining clarity.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
witnessed performing
Focuses on the act of witnessing, emphasizing the performance aspect.
seen carrying out
Emphasizes the execution of a task or activity.
caught in the act of
Implies being discovered while doing something, often with a negative connotation.
found engaging in
Highlights the involvement or participation in an activity.
noticed undertaking
Formal alternative, focusing on the beginning or continuation of an activity.
detected executing
Emphasizes the act of carrying out a plan or command.
spotted performing
Informal alternative, suggesting a casual observation.
viewed conducting
Formal alternative, suggesting a more structured or official observation.
watched while doing
Emphasizes the continuous nature of the observation.
perceived doing
Highlights the subjective nature of the observation, suggesting it is based on perception.
FAQs
How can I use "observed doing" in a sentence?
You can use "observed doing" to describe witnessing someone engaged in a particular action. For example, "The scientist "observed doing" the experiment carefully".
What are some alternatives to "observed doing"?
Alternatives include "witnessed performing", "seen carrying out", or "caught in the act of", depending on the specific nuance you wish to convey.
Is it more formal to say "observed doing" or "saw doing"?
"Observed doing" is generally considered more formal than "saw doing". Use "observed doing" in professional or academic contexts where a more objective tone is desired.
What is the difference between "observed doing" and "noticed doing"?
"Observed doing" often implies a deliberate act of watching, while "noticed doing" suggests a more casual or incidental observation. If you deliberately watched someone doing something you can use "observed doing" but if you just saw someone doing something without any intent you should use "noticed doing".
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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
84%
Authority and reliability
4.1/5
Expert rating
Real-world application tested