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Justyna Jupowicz-Kozak quote

Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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are by

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "are by" is correct and usable in written English.
It can be used to indicate the agent or source of an action, often in passive constructions. Example: "The results of the study are by researchers from the university."

✓ Grammatically correct

News & Media

Science

Encyclopedias

Human-verified examples from authoritative sources

Exact Expressions

59 human-written examples

Tours are by appointment.

News & Media

The New York Times

Bodies are by antibodies.

News & Media

The New Yorker

They are, by definition, short.

News & Media

The New York Times

Private tours are by appointment.

News & Media

The New York Times

Some meetings are by chance.

News & Media

The New York Times

The similarities are by design.

News & Media

The New York Times

S.P.E.s are by nature difficult.

News & Media

The New Yorker

(Two others are by Giuffre).

As we are by them".

News & Media

Independent

Most are by ordinary people.

News & Media

The New York Times
Show more...

Human-verified similar examples from authoritative sources

Similar Expressions

1 human-written examples

By-elections are by-elections.

News & Media

The Economist

Expert writing Tips

Best practice

When attributing credit or origin, use "are by" to clearly indicate the creator or source. For example, "The paintings are by Van Gogh".

Common error

Avoid using "are by" when implying possession rather than creation or authorship. For example, don't say "The keys are by John" when you mean "The keys belong to John".

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

89%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "are by" functions as a passive construction marker, indicating the agent or source responsible for an action or creation. Ludwig AI shows it is commonly used to attribute authorship or causation. For example, "The novel is by Dickens" or "The problems are caused by neglect".

Expression frequency: Very common

Frequent in

News & Media

40%

Science

25%

Encyclopedias

15%

Less common in

Formal & Business

5%

Reference

5%

Academia

5%

Ludwig's WRAP-UP

The phrase "are by" is a versatile construction primarily used to attribute creation, authorship, or causation. As Ludwig AI confirms, it is grammatically correct and frequently appears across various contexts, ranging from news media to scientific publications. The neutral register of "are by" makes it suitable for both formal and informal communication. While using "are by", ensure you're indicating the source or agent, not merely possession. Related phrases such as "are created by" or "are designed by" offer nuanced alternatives depending on the specific context. Overall, mastering "are by" enhances clarity and precision in your writing.

FAQs

How can I use "are by" in a sentence?

"Are by" is typically used to indicate authorship, creation, or origin. For instance, "The sculptures are by Michelangelo" or "These errors "are caused by" the new software".

What's the difference between "are by" and "are from"?

"Are by" indicates the creator or author, while "are from" typically indicates origin or source. For example, "The book is by Jane Austen" versus "The wine is "are from France"".

Which is correct, "the drawings are by him" or "the drawings are his"?

"The drawings are by him" indicates he created the drawings. "The drawings are his" indicates possession. The correct usage depends on the intended meaning.

What can I say instead of "the rules are by definition"?

Alternatives include "the rules "are inherently"", "the rules are fundamentally", or "the rules are intrinsically", depending on the specific nuance you want to convey.

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Source & Trust

89%

Authority and reliability

4.5/5

Expert rating

Real-world application tested

Most frequent sentences: