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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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has observed

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "has observed" is correct and usable in written English.
It can be used when referring to someone who has seen or noticed something in the past and the observation is relevant to the present context. Example: "The scientist has observed a significant change in the behavior of the species over the last decade."

✓ Grammatically correct

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

- has observed.

That's what Ms. Smith has observed.

News & Media

The New York Times

He has observed a pair of kites.

News & Media

The New Yorker

It has observed a ceasefire in Gaza.

News & Media

The Guardian

"It will be slimy," he has observed.

News & Media

The New Yorker

She has observed Hogue's progress with satisfaction.

News & Media

The New York Times

Yitta Mandelbaum has observed the shifts firsthand.

News & Media

The New York Times

As Geoff Scott has observed,... these claims are farcical.

Le Guin has observed that "wizardry is artistry.

Zeyada has observed insecurity among his own four children.

News & Media

The Guardian

Shakespeare's women, Harold Bloom has observed, are always marrying down.

News & Media

The New Yorker
Show more...

Expert writing Tips

Best practice

Use "has observed" when you want to emphasize that someone has actively watched and taken note of something, especially when the observation leads to a conclusion or insight.

Common error

While grammatically correct, "has observed" can sound overly formal in casual conversations. Consider using simpler alternatives like "noticed" or "saw" for a more natural tone.

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

92%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "has observed" functions as a present perfect verb phrase. It indicates an action (observing) that was completed at some point in the past and has relevance to the present. Ludwig confirms its grammatical correctness and widespread usage.

Expression frequency: Very common

Frequent in

News & Media

60%

Academia

20%

Formal & Business

10%

Less common in

Science

5%

Encyclopedias

3%

Reference

2%

Ludwig's WRAP-UP

In summary, "has observed" is a grammatically sound and frequently used verb phrase, particularly in news, academic, and formal contexts. Ludwig AI confirms that it's appropriate when indicating that someone has actively watched and noted something, often leading to a conclusion or insight. While versatile, it's advisable to consider more informal alternatives like "noticed" or "saw" in casual settings. The phrase's formality lends itself to objective reporting and analytical discussions. Remember to use "has observed" when you wish to underline the active nature of observation and its resulting understanding.

FAQs

What can I say instead of "has observed"?

You can use alternatives like "has noted", "has noticed", or "has witnessed" depending on the context.

How do I use "has observed" in a sentence?

"Has observed" is typically used to indicate that someone has seen or noticed something and is often followed by what was observed. For example, "The scientist has observed a change in the animal's behavior."

What is the difference between "has observed" and "has seen"?

"Has seen" simply means that someone has visually perceived something. "Has observed", on the other hand, implies a more active and thoughtful process of watching and noting details.

Is "has observed" formal or informal?

"Has observed" leans towards the formal side. In informal contexts, alternatives such as "noticed" or "saw" might be more appropriate.

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Source & Trust

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Authority and reliability

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Real-world application tested

Most frequent sentences: