• No Relative Pronouns

• 
• Some relative pronouns can be left out of a sentence.

  
  

  When a relative pronoun is followed by the subject* of a relative clause, it can be left out. 

  -The real estate agent that we met was very kind.

  (That is followed by the clause's subject, so it can be left out.)

  -The real estate agent we met was very kind.

  
  

  Relative pronouns followed by a verb* cannot be left out.

  -The real estate agent that helped us was very kind.

  (That is followed by a verb, so it cannot be left out.) 
•  Click on the play button to hear the audio

• Jack lives next door to a tenant who has a dog.	The tenant (who) Jack lives next door to has a dog.
  We want the apartment that is on the fifth floor.	The apartment (that) we want is on the fifth floor.

• *Remember! All clauses (dependent, independent, relative, etc.) have a subject and a verb.

 Source : Alison