of which are

USAGE SUMMARY

The phrase "of which are" is correct and usable in written English.
You can use it when referring to a noun that has already been previously mentioned in the sentence. For example: "I have multiple strands of pearls, of which are valuable heirlooms passed down from my grandmother."

✓ Grammatically correct

News & Media

Academia

Science

Human-verified examples from authoritative sources

Exact Expressions

57 human-written examples

None of which are bad things, obviously.

Independent

Some of which are likable, some of which are not".

The New York Times

195 photographs, 150 of which are autographed.

Cornell University

the contents of which are partially removed.

Cornell University

Neither of which are taken for granted.

The Guardian

Of which are you most critical?

The New York Times

Many of which are high profile companies.

The Guardian

Both of which are true points.

The Washington Post

Human-verified similar examples from authoritative sources

Similar Expressions

3 human-written examples

Both of which were true.

The New Yorker

All of which is welcome.

Independent

All of which is understandable.

The New Yorker

Expert writing Tips

Best practice

Use "of which are" to provide additional information or characteristics about items already mentioned, ensuring clarity and conciseness in your writing. For example: "The project involves several stages, of which are crucial for its success."

Common error

Avoid using "of which are" when referring to a singular noun; instead, use "of which is". For example, instead of saying "The book, of which are interesting", say "The book, of which is interesting".

Linguistic Context

The phrase "of which are" functions as a relative clause, providing additional information about a previously mentioned noun. Ludwig confirms this through its real-world examples, showcasing how it introduces clauses that further describe elements within a set or group.

Expression frequency: Very common

Frequent in

News & Media

44%

Academia

37%

Science

13%

Less common in

Formal & Business

3%

Wiki

0%

Reference

0%

Ludwig's WRAP-UP

In summary, the phrase "of which are" is a grammatically sound and frequently used relative clause to add details about a group or set. As Ludwig showcases, its use is widespread across news, academic, and scientific contexts. While "of which are" is generally correct, remember to pair it with plural nouns and use "of which is" for singular nouns. By following the writing guidance and avoiding common errors, you can effectively incorporate "of which are" into your writing.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

some of which

Emphasizes a portion rather than the whole group.

many of whom

Specifically refers to people within the group.

a number of which

Highlights the quantity or count within the group.

several of which

Implies a few items from the previously mentioned group.

all of whom

Refers to the whole group of persons.

none of whom

Refers to the exclusion of a group of people.

most of whom

Highlights the majority of people in a group.

a few of which

Indicates a small number from the total.

one of which

Specifies a single item from the group.

certain of which

Highlights specific or particular items.

FAQs

How do I use "of which are" in a sentence?

Use "of which are" to provide more information about a group or set of items already mentioned. For example: "We reviewed several proposals, of which are viable options for the project."

What can I say instead of "of which are"?

You can use alternatives like "some of which", "many of whom", or "a number of which" depending on the context.

Is it correct to use "of which are" with a singular subject?

No, "of which are" is used with plural subjects. For a singular subject, use "of which is". For example, "The component, of which is essential, requires careful handling".

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

"Of which are" is used for plural nouns, while "of which is" is used for singular nouns. For example: "The documents, of which are confidential, must be secured" versus "The document, of which is confidential, must be secured".