Adjective clauses are dependent clauses that provide information about nouns. They are also known as relative clauses. Adjective clauses contain a subject and a verb, and usually begin with a relative pronoun.  Relative pronouns are used as connectors to combine two sentences into one. Some examples of relative pronouns include: Who, Whom, Whose, Where, When, Which, That, Why .  Some rules for creating an adjective clause include: Adjective clauses must be connected to an independent clause to form a complete sentence. Adjective clauses must come after the noun they modify. Adjective... Show more

Adjective clauses are dependent clauses that provide information about nouns. They are also known as relative clauses. Adjective clauses contain a subject and a verb, and usually begin with a relative pronoun. 

Relative pronouns are used as connectors to combine two sentences into one. Some examples of relative pronouns include: Who, Whom, Whose, Where, When, Which, That, Why
. 
Some rules for creating an adjective clause include:
Adjective clauses must be connected to an independent clause to form a complete sentence.
Adjective clauses must come after the noun they modify.
Adjective clauses can improve writing by adding details. 

Relative adverbs include when, where, and why. Relative adverbs are adverbials that modify verbs. They can act as adjuncts in four ways: Place, Time, Reason, Manner. 
For example, in the sentence "The store where I buy my groceries is closing," the phrase "where I buy my groceries" is a relative adjective clause. The word "where" is itself a relative adverb.

Related Test: English Grammar Practice Test: Noun Clauses

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