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Justyna Jupowicz-Kozak

CEO of Professional Science Editing for Scientists @ prosciediting.com

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which are comprised of

Grammar usage guide and real-world examples

USAGE SUMMARY

The phrase "which are comprised of" is often considered incorrect in formal written English.
It is typically used to describe the components or elements that make up a whole. Example: "The committee, which are comprised of experts in various fields, will meet next week."

Science

News & Media

Academia

Human-verified examples from authoritative sources

Exact Expressions

60 human-written examples

The FDA usually follows the guidance of those committees, which are comprised of experts on various drugs and medical devices.

The LFP particles are uniform mesoporous spindles, which are comprised of numerous single-crystal LFP nanocrystals.

SOC permits the utilization of large systems which are comprised of self-containing building blocks: services.

Recently, however, nanostructured solid state materials, which are comprised of two or more compositional or structural phases, have been considered.

Enterococcus faecalis FIC belongs to class III FIC proteins, which are comprised of a single FIC domain and carry an autoinhibitory glutamate in their C-terminal α-helix.

Science & Research

Nature

The carbohydrates in the biomass, which are comprised of oxygen, carbon, and hydrogen, can be broken down into a variety of chemicals, some of which are useful fuels.

News & Media

The Guardian

Magnetic nanofluids (MNFs) are suspensions which are comprised of a non-magnetic base fluid and magnetic nanoparticles.

In the process, we establish several properties of the SLI class of networks, which are comprised of linearly independent networks joined together.

The Fortunoff Archive currently holds more than 4,400 testimonies, which are comprised of over 10,000 recorded hours of videotape.

They begin the year by doing a series of orientation exercises with their learning teams, which are comprised of eight or nine first-year students.

Solid-state drives, or S.S.D., which are comprised of microchips and have no moving parts, easily cut the boot time in half.

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Expert writing Tips

Best practice

Prefer using grammatically standard alternatives like "which are composed of" or "which consist of" in formal writing to avoid potential criticism, while understanding that "which are comprised of" is widely used.

Common error

While common, the phrase "which are comprised of" is often flagged as technically incorrect. Instead, ensure that "comprise" means 'to consist of' and is used such that the whole comprises the parts, not the other way around. It's safer to use alternatives like "composed of" or "consist of".

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

3.9/5

Expert rating

Real-world application tested

Linguistic Context

The phrase "which are comprised of" functions as a relative clause modifying a noun or noun phrase. It serves to provide additional information about the composition or constituent elements of the noun it modifies. Ludwig provides various examples illustrating its usage.

Expression frequency: Very common

Frequent in

Science

47%

News & Media

28%

Academia

21%

Less common in

Formal & Business

4%

Encyclopedias

0%

Wiki

0%

Ludwig's WRAP-UP

In summary, the phrase "which are comprised of" is used to describe the components of something, functioning as a relative clause. Despite its frequent usage across various domains like science, news, and academia, it's often considered grammatically incorrect. As Ludwig AI points out, safer alternatives include "which are composed of" or "which consist of", particularly in formal writing. Therefore, while understandable and common, writers should be aware of the potential for criticism and consider using alternatives for greater grammatical precision.

FAQs

How can I use "which are comprised of" in a sentence?

You can use "which are comprised of" to describe the parts that make up a whole, like in "The team, which are comprised of experts, is ready to tackle the project.". However, be aware that some consider this usage technically incorrect.

What's a grammatically safer alternative to "which are comprised of"?

Alternatives like "which are composed of" or "which consist of" are generally considered grammatically correct and can be used in formal contexts.

Is it wrong to say "which are comprised of"?

While widely used, "which are comprised of" is often considered incorrect by grammarians. The verb "comprise" means 'to include' or 'to contain', so the parts comprise the whole, not the other way around. It's safer to use alternatives like "which are composed of".

What is the difference between "which are comprised of" and "which comprise"?

"Which are comprised of" is used to indicate what something is made of, whereas "which comprise" indicates what something includes. For instance, "The cake, which is comprised of flour, sugar, and eggs..." versus "The ingredients, which comprise flour, sugar, and eggs, make a cake." However, be mindful that using "comprised of" is often discouraged.

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Most frequent sentences: