In the following sentences, the adjective clause is underlined. Notice the 
word that begins the clause. 
This extremely intelligent geologist, who is also a talented juggler,
 
has been asked to visit the State Assembly later this month. 
The street that you live on is scheduled to be repaved next month. 
The movie director, whom you read about last week, will be 
promoting her new film throughout Europe. 
There are essentially two types of adjective clauses—restrictive and unrestrictive 
clauses. 
➲ A restrictive (or essential) adjective clause offers essential 
information that is necessary to complete the sentence’s thought.
 
An example of this is, ‘‘The trophy that was presented to you is 
enormous.’’ Here, the adjective clause that was presented to you restricts 
the information to just that trophy. 
➲ An unrestrictive (or nonessential) clause simply offers more 
information about the noun it describes. In the sentence, ‘‘The trophy, 
which was made in Canada, was presented to you,’’ the adjective clause 
which was made in Canada is nonessential to the sentence. It just offers 
more information about the trophy.   
