SEE ALSO: Phrase versus clause
An adjective “modifies” (“adds information to”) a noun. Adjective phrases and adjective clauses also modify nouns.
“Black” is the adjective.
the cat in the hat
“In the hat” is an adjective phrase.
(remember: A phrase does not have a subject-predicate structure.)
adjective clause (also called “relative clause“)
the cat who lives in the house
“Who lives in the house” is an adjective clause.
(remember: A clause has a subject and a predicate. And: a clause can be independent or dependent. A sentence has at least one independent clause.)
structure of the adjective clause:
who || lives in the house
who [SUBJECT] || lives [VERB] in the house [PREDICATE]
“Who” is the SUBJECT.
“Lives” is the VERB.
“Lives in the house” is the COMPLETE PREDICATE.
NOTE: An adjective clause is a dependent clause. It cannot stand alone as a complete sentence.
Technically, you’re not supposed to use “who” to refer to animals. “Who” refers to people; “that” or “which” refers to animals.
I break this rule intentionally, but I want you to know that the rule exists.