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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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none observed

Grammar usage guide and real-world examples

USAGE SUMMARY

"none observed" is a perfectly valid and usable phrase in written English.
It is often used when emphasizing the absence of something. For example, "During the swim, no dolphins were observed - only seagulls, sea lions, and penguins."

✓ Grammatically correct

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

9 human-written examples

Among 3 studies reporting length of stay, none observed a difference.

They appeared at intervals the whole way up the river, but none observed were more than three feet or three feet six inches long.

Science & Research

Nature

The internal report from March 1 , 2010 shortly before the accident, noted a problem with water sprayers, while the official report stated flatly "none observed" in the column for hazardous conditions.

News & Media

The New York Times

Species richness of other common Caribbean reef fish families was also relatively low on Saba Bank (Gerreidae, none observed; Sparidae,1 species; Lutjanidae, 3 species) - many of which require either seagrasses and/or mangroves as "nursery areas" [11], [41], [42].

Science

Plosone

Multicollinearity was investigated but none observed.

None observed during this period was related to ovarian cancer symptom awareness.

Science

BMC Cancer
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Human-verified similar examples from authoritative sources

Similar Expressions

51 human-written examples

None of these properties have a clear connection to cell morphology changes and in S. pombe, none are observed.

Above 250 nm, the variation declines further until none is observed above ∼290 nm.

"Bleaching events have occurred repeatedly since the late 1970s while none were observed before the 1970s," Steffen said.

News & Media

The Guardian

None was observed at Chinese firms listed in America without using RTs.

News & Media

The Economist

Aged conventional inserts showed delaminations, whereas none were observed in the unaged conventional and aged cross-linked inserts.

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Expert writing Tips

Best practice

Use "none observed" when you want to clearly and concisely state that something was not found or detected during an observation or investigation. It's suitable for formal reports, scientific papers, and technical documentation.

Common error

Avoid using "none observed" in casual conversation or informal writing. It can sound overly formal or stilted. Instead, opt for simpler alternatives like "didn't see anything" or "nothing was there".

Antonio Rotolo, PhD - Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

81%

Authority and reliability

4.1/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "none observed" primarily functions as a concise statement of absence or lack of detection. It is often used in reports, surveys, and scientific contexts to indicate that something was not found or witnessed. As Ludwig AI confirms, it is considered grammatically correct and acceptable.

Expression frequency: Uncommon

Frequent in

Science

70%

News & Media

20%

Formal & Business

10%

Less common in

Encyclopedias

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "none observed" is a concise and grammatically correct way to indicate the absence of something during an observation or investigation. As Ludwig AI confirms, it is most commonly found in scientific and technical writing, where its formality and precision are valued. While "nothing was observed" is a viable alternative, "none observed" maintains a distinct presence in formal contexts. When employing this phrase, consider the register of your writing and whether a more casual expression might be more appropriate.

FAQs

How can I use "none observed" in a sentence?

Use "none observed" to indicate the absence of something specific during observation. For instance, "During the experiment, "none observed" in the control group showed any adverse effects".

What's a more casual way to say "none observed"?

In informal contexts, you can replace "none observed" with phrases like "didn't see any", "saw nothing", or "nothing was there".

Is it better to say "nothing was observed" or "none observed"?

Both "nothing was observed" and ""none observed"" are grammatically correct, but "nothing was observed" may sound slightly more natural in some contexts. "None observed" is often used in tables or brief reports.

When is it appropriate to use the phrase "none observed"?

Use ""none observed"" in formal writing, scientific reports, and technical documentation when reporting the absence of something specific during an observation or investigation.

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Source & Trust

81%

Authority and reliability

4.1/5

Expert rating

Real-world application tested

Most frequent sentences: