Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
it comprised of
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "it comprised of" is not correct in standard written English.
The correct form is "it comprised" or "it is composed of." Example: "The committee comprised experts from various fields."
⚠ May contain grammatical issues
Science
News & Media
Formal & Business
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
22 human-written examples
When the strategy was first announced in 2015 it comprised of 20 mammals and 20 birds.
News & Media
It comprised of a reactor vessel, vapor phase ethylene feed stream, benzene and transalkylation feed stream.
Services for Children said in a statement it comprised "of two experienced social workers" and was appointed by the court to "facilitate the rehabilitation" of Ellie with her parents.
News & Media
It comprised of a 50 nm thick Ni0.4Cd0.6O film with Eg~3.0 eV with a valence band aligned to the one of the Sub-A, providing a barrier-free hole-flow.
Today he's trusted with overseeing $4.5 trillion in assets, a large chunk of it comprised of the hard-earned dollars from the average US citizen's pension or retirement account.
News & Media
It comprised of an assortment of satin boots, floral printed mules and linen sandals.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
38 human-written examples
It comprises of 11 individual subjects' faces with neutral pose.
Science & Research
It comprises of two phases: preclinical and clinical.
It comprises of short stories of various persons who are closely and quite loosely connected.
News & Media
It comprises of a bundle of cotton wool in the middle and some cotton sheeting around it.
News & Media
Hydnum L. is a fungal genus with considerable ecological and economic importance as it comprises of several edible ectomycorrhizal mushrooms.
Science & Research
Expert writing Tips
Best practice
Avoid using the phrase "it comprised of" in formal writing. Instead, use "it comprised", "it consisted of", or "it was composed of" to maintain grammatical correctness.
Common error
Many writers incorrectly use "comprised of" due to confusion with similar phrases like "composed of" or "consisted of". Remember that "comprise" means 'to consist of; be composed of' so it doesn't need the additional 'of'.
Source & Trust
83%
Authority and reliability
2.8/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "it comprised of" functions as a verb phrase intended to describe the composition of a subject. However, it is grammatically incorrect and should be avoided. Ludwig AI confirms this with the note about the usage of the phrase.
Frequent in
Science
40%
News & Media
30%
Formal & Business
10%
Less common in
Wiki
10%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, while the phrase "it comprised of" is relatively common, it is considered grammatically incorrect. Ludwig AI highlights that the correct form is either "it comprised" or alternatives like "it consisted of" or "it was composed of". Although it appears across various sources like Science, News & Media, and Formal & Business contexts, aiming for precision in writing requires avoiding this construction. Remember to use "it comprised" to properly convey that something includes or consists of specific elements.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
it consisted of
Replaces the verb "comprised" with "consisted", maintaining a similar meaning but using a grammatically correct structure.
it was composed of
Uses a passive construction with "composed" to express the same idea in a grammatically sound way.
it was made up of
Uses a more informal, yet grammatically correct, way to express the composition of something.
it included
Offers a more general term, focusing on the inclusion of elements rather than the complete composition.
it contained
Focuses on the contents or elements held within something, rather than the overall structure.
it incorporated
Highlights the integration of elements into a whole, suggesting a more active combination.
it featured
Emphasizes specific aspects or components that are notable within the whole.
it embraced
Suggests a more encompassing inclusion of elements, implying a broader scope.
it embodied
Implies that the elements are essential and representative of the whole.
it encompassed
Indicates that the whole completely surrounds or includes all the elements.
FAQs
What is the correct way to use the word "comprise"?
The word "comprise" means to consist of or to be made up of. Therefore, the correct usage is "it comprised" or "it comprises", not "it comprised of".
What can I say instead of "it comprised of"?
You can use alternatives like "it consisted of", "it was composed of", or "it included" depending on the context.
Is "comprised of" ever correct?
The phrase "comprised of" is generally considered incorrect. The verb "comprise" means 'to consist of' or 'to include', so adding "of" is redundant. Stick to using "comprise" without "of" or use a different verb like "consist".
What's the difference between "it comprised" and "it was comprised of"?
The phrase "it comprised" is the preferred, active voice construction, meaning 'it included' or 'it consisted of'. The passive construction "it was comprised of" is often discouraged because it's redundant. However, "it was composed of" is a valid alternative.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
2.8/5
Expert rating
Real-world application tested