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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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are reproduction

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "are reproduction" is not correct in English as it lacks proper grammatical structure.
It may be intended to refer to the act of reproducing or the state of being a reproduction, but it needs additional context or modification to be usable. Example: "The results of the experiment are reproduction of previous findings."

⚠ May contain grammatical issues

Science

News & Media

Human-verified examples from authoritative sources

Exact Expressions

7 human-written examples

These are reproduction blueprints from J. Pocker & Son, a custom framer and art print dealer, which was established in 1926.

News & Media

The New York Times

Above his desk is a reproduction of a lovely 15th-century fresco of the young Cicero reading, and laid here and there are reproduction military helmets (one, in the Roman style, elaborately plumed), a shield and a cricket bat.

According to this classification, inheritance processes are reproduction processes in which there are evolved mechanisms for producing hereditary relations in development.

Science

SEP

His mathematical contributions are: reproduction of Brahmagupta's solution of a certain indeterminate equation, calculations of the lengths of the parabola and cycloid, quadrature of the hyperbola which required approximation of the natural logarithm function by infinite series and the study of generalized continued fractions.

The parameters of the model are reproduction date (D, in years, beginning in January), adult size (L, in mm) of the group and the individual growth rate of fish i (Ti).

Science

Plosone

The most commonly used epidemiological parameters are reproduction number (R), illness attack rate (IAR), disease natural history parameters, and fraction of asymptomatic infected cases.

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Human-verified similar examples from authoritative sources

Similar Expressions

51 human-written examples

"Most of these are reproductions," he said.

News & Media

The New Yorker

There are reproductions, to be sure, but what about "appreciation"?

The chairs are reproductions of 18th-century French pieces.

News & Media

The New York Times

Then he photographed the drawings and enlarged them so that the results are reproductions of reproductions.

They are reproductions of a pair that has stood outside the HSBC branch in Hong Kong since 1935.

News & Media

The New York Times
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Expert writing Tips

Best practice

When referring to the concept of making copies or offspring, use the correct grammatical form: "is reproduction" for singular subjects or "are reproductions" for plural subjects.

Common error

Ensure the verb "to be" agrees with the subject; using "are" with the singular noun "reproduction" is incorrect. For a singular subject, use "is"; for multiple instances, use "are reproductions".

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

Antonio Rotolo, PhD

Digital Humanist | Computational Linguist | CEO @Ludwig.guru

Source & Trust

85%

Authority and reliability

2.8/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "are reproduction" functions as a linking phrase, attempting to connect a subject with the concept of reproduction. However, it is grammatically incorrect, as highlighted by Ludwig AI, because "reproduction" is a singular noun and requires a singular verb form. Examples show it being used in various contexts, though often incorrectly.

Expression frequency: Uncommon

Frequent in

Science

43%

News & Media

43%

Encyclopedias

14%

Less common in

Formal & Business

0%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, while the phrase "are reproduction" appears in various sources, it is generally considered grammatically incorrect. Ludwig AI confirms this assessment. The correct forms are "is reproduction" for singular contexts and "are reproductions" for plural instances. Though examples exist across scientific, news, and encyclopedic contexts, users should exercise caution and ensure proper verb agreement to maintain grammatical accuracy. Understanding the nuances between singular and plural forms, as well as related phrases, will enhance clarity and precision in writing.

FAQs

How can I correct the phrase "are reproduction"?

The phrase "are reproduction" is grammatically incorrect. You should use "is reproduction" if referring to a singular instance or "are reproductions" if referring to multiple instances. For example, "cloning "is reproduction", not resurrection" or "these "are reproductions" of 18th-century French pieces".

What's the difference between "is reproduction" and "are reproductions"?

"Is reproduction" refers to a singular instance or a general concept, while "are reproductions" refers to multiple instances or copies. For example, you might say, "The key function "is reproduction"" versus "These items "are reproductions" of original artifacts".

What are some alternatives to the phrase "are reproduction" that still convey the same meaning?

Depending on the context, alternatives to "are reproduction" include phrases like "involve reproduction", "relate to reproduction", or "affect reproduction". The best choice depends on the specific meaning you wish to convey. Using "is reproduction" or "are reproductions" is also a better and more grammatically correct alternative.

When is it appropriate to use the phrase "are reproduction"?

The phrase "are reproduction" is generally grammatically incorrect. It is more appropriate to use "is reproduction" for singular subjects or "are reproductions" for plural subjects. Ensure the verb agrees with the subject to maintain grammatical accuracy.

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Most frequent sentences: