Comprise + object
Incorrect : This book comprises of five chapters.
Correct . This book comprises five chapters.
Note: “Comprise" is a transitive verb which means “consist of”. You can use “comprise' and "consist of” interchangeably. For example:
The united kingdom consists of/comprises England, Scotland, Wales and Northern Ireland.
You can also say:
England, Scotland, Wales and Northern Ireland comprise/constitute the United kingdom.
Do not use "comprise' or "consist of” in progressive forms.
