Adjective Clause

DEFINITION
Adjective clause or a relative clause is a dependent clause that functions as an adjective and a noun or pronoun describes on the main clause of a complex sentence (sentence consists of an independent clause and one or more dependent clause).

The position of the adjective clause always follows the noun or pronoun that expounds. In the sentence, the noun or pronoun that serves as the subject or object. Adjective clause begins with a word called a relative pronoun (who, Whom, that, roomates, Whose, etc) which serves to bridge the noun or pronoun relationship with the unexplained.


Punctuation (Punctuation) on the Adjective Clause
When describing the subject, the position of the adjective clause will be in mid-sentence. Such clauses can be enclosed in a coma or not, depending on whether or not important additional information it carries. Information is considered essential (critical) or restrictive if it will change the meaning of a sentence if it is removed. In such situations, the comma is not used. A clause which carries essential information is called the defining clause. Conversely, if the non-essential information (not essential) or non-restrictive because it can be removed without changing the meaning of the sentence, the comma is used. Clauses that carry non-essential information is called a non-defining clause.

Complex Example Sentence: 

Essential: People who chew well may have healthy digestion.
Non-essential: Yulia, who does exercise Regularly, has a positive body image..