How do collective nouns from plural nouns?

Collective nouns are not formed from plural nouns. Instead, they are singular nouns that refer to a group of people, animals, or things.

Here's how it works:

* Plural Nouns: These refer to multiple individual items. For example: *cats, dogs, books, chairs*

* Collective Nouns: These refer to a group of individuals as a single unit. For example: *flock (of birds), herd (of cattle), team (of players), class (of students)*

While some collective nouns may be formed from the plural form of a noun, they are not *derived* from them. For example:

* A flock of birds: *Flock* is a collective noun, and while *birds* is a plural noun, *flock* is not simply the plural of *bird*.

Here's how you can identify collective nouns:

* They are singular nouns, even if they refer to multiple individuals.

* They often describe a group with a specific purpose or relationship.

* They can be used with singular verbs. For example: "The team *is* practicing."

Let me know if you have any other questions!