Comprise or comprise of?

When do you append ‘of’ to the verb ‘comprise’?

Comprise means to include or to consist of. Of is added when the verb is used passively (eg something is comprised of something else). When used actively, do not use ‘of’. See following example.

If you want to write about the composition of a committee, you could write either:

“The committee comprises four managers, three members of staff and two customers.”

or

“The committee is comprised of four managers, three members of staff and two customers.”

You should not write: “The committee comprises of four managers, three members of staff and two customers.”

Robert Zarywacz

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