English Defining and Non-Defining Relative Clauses and Example Sentences Defining and Non – Defining Relative Clauses Phrases that start with words such as who, which, that, where, whose name called relative pronoun and characterize the name in a sentence or give extra information about that name are called “relative clause”. Relative clause is not independent in the sentence, but depends on the main sentence. They often come after the name they describe in the sentence. It should be noted, however, that such clauses precede the name they describe. Let’s take two sentences and convert them into one clause in relative