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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
it has observed
Grammar usage guide and real-world examplesUSAGE SUMMARY
"it has observed" is correct and usable in written English.
You can use it when you want to refer to an observation that has already been made. For example: "The committee has looked at the data and it has observed that the market has shifted significantly since last year."
✓ Grammatically correct
News & Media
Science
Academia
Alternative expressions(20)
it has noticed
it has detected
it has identified
it has seen
it has witnessed
it has perceived
it has recognized
it has ascertained
it has adhered
it has followed
it has retrieved
it has revived
it has ignored
it has governed
it has implemented
it has participated
it has removed
it has invoked
it has abided
it has saved
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
21 human-written examples
Although the US is not a signatory to treaty, it has observed the international convention in its naval operations.
News & Media
It has observed a ceasefire in Gaza.
News & Media
Google didn't respond to queries about whether it has observed any new coordinated disinformation.
News & Media
Ironically, some of these reasons are that it has observed some very old but much-neglected rules of good advertising.
News & Media
It has observed an inverse link between profit margins and personal savings, which are very low in America.
News & Media
It has observed that amino acids with different amount and position of carboxyl groups show different binding constants on ultraviolet-visible (UV vis) spectra.
Human-verified similar examples from authoritative sources
Similar Expressions
39 human-written examples
In addition to not squashing the flies, the robot needed to be able to distinguish between the flies it had observed to prevent analyzing the same fly repeatedly.
Academia
In 2014, a team reported6 that it had observed this effect with the BICEP2 telescope at the South Pole, but the researchers later acknowledged problems with that interpretation7.
Science & Research
On Wednesday the Israeli military said it had observed Hamas evacuating fighters from military posts, a sign of an impending operation by the group.
News & Media
That is half an hour behind South Korea, and the same standard time it had observed before Japan colonised the Korean peninsula in 1910.
News & Media
It said it had observed fake review sellers attempting to avoid detection by using multiple accounts from unique IP addresses.
News & Media
Expert writing Tips
Best practice
Use "it has observed" to formally introduce an observation, especially when presenting findings or reporting on monitored events. This construction lends a sense of authority and attention to detail.
Common error
Avoid excessive use of passive voice constructions like "it has observed" which can make writing sound indirect. Opt for active voice when possible for a more engaging and direct style. For instance, instead of "It has observed a decline", consider "The study observed a decline."
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "it has observed" functions as a formal way to introduce an observation or finding. As confirmed by Ludwig AI, it is grammatically sound and usable. The phrase is most frequently used in academic, scientific, and news contexts, showcasing its versatility in formal communication.
Frequent in
News & Media
40%
Science
30%
Academia
10%
Less common in
Formal & Business
5%
Encyclopedias
5%
Reference
5%
Ludwig's WRAP-UP
In summary, "it has observed" is a grammatically correct and frequently used phrase to formally introduce an observation or finding, as confirmed by Ludwig AI. It is commonly found in news, science, and academic writing, lending a sense of authority and objectivity to the statement. While effective, be mindful of potential overuse and consider active voice constructions for more directness. Alternatives like "it has noticed" or "it has identified" can add nuance depending on the specific context. Therefore, while it is important to use it correctly, you may want to consider using alternative phrases in order to make your writing more diverse and interesting.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
it has noticed
Replaces "observed" with "noticed", suggesting a more casual or immediate awareness.
it has detected
Substitutes "observed" with "detected", implying a more formal or scientific discovery.
it has witnessed
Changes "observed" to "witnessed", adding a sense of being present during an event.
it has perceived
Replaces "observed" with "perceived", focusing on subjective understanding.
it has identified
Substitutes "observed" with "identified", indicating a clear recognition of something specific.
it has recognized
Changes "observed" to "recognized", emphasizing acknowledgment of a known entity or pattern.
it has seen
Replaces "observed" with "seen", offering a simpler and more direct expression of having visually noted something.
it has become aware of
Expands "observed" into "become aware of", suggesting a gradual realization.
it has taken note of
Replaces "observed" with "taken note of", emphasizing attention to detail.
it has ascertained
Substitutes "observed" with "ascertained", implying a confirmation through investigation.
FAQs
How can I use "it has observed" in a sentence?
Use "it has observed" to formally introduce a finding or observation. For example, "The study has collected data and "it has observed" a significant increase in the affected areas."
What are some alternatives to saying "it has observed"?
Alternatives include "it has noticed", "it has detected", or "it has identified" depending on the context.
Is it better to use active or passive voice when using "it has observed"?
While "it has observed" is grammatically correct, using an active voice construction can sometimes improve clarity and directness. For instance, consider rephrasing to "The researchers observed" instead of ""it has observed" by the researchers".
In what contexts is "it has observed" most appropriate?
"It has observed" is best used in formal writing, reports, or academic papers where a neutral and authoritative tone is desired. For more informal settings, consider using simpler alternatives such as "it has seen" or "it has noticed".
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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
4.5/5
Expert rating
Real-world application tested