Subject Nouns

A noun may be the subject of a sentence. The subject is the part of the sentence that does something or is being talked about.

Joe gave Nadia a note.

(The noun Joe did something, gave Nadia a note.)

Predicate Nouns

A predicate noun follows a form of the verb “be” (is, are, was, were, etc.) and renames the subject.

The book is a mystery.

(The noun mystery renames the subject book.)

Possessive Nouns

A possessive noun shows ownership. To form a possessive noun, use an apostrophe and s.

The book’s ending is a big surprise.