Question

Essential Clause is the info in the clause necessary to the understanding of the sentince while a Nonessential clause uses commas before and after nonessential clauses that interrupt a sentince without changing the essential meaning. An example for essential clause: The bike that my dad built looked brand new. The example for nonessential clause: The garage, that was really old, had alot of boxes. When you use relative pronouns you have to use them correctly: Who relates to people (subject); Whom relates to people (whom); Which relates to animals and objects; That relates to people, animals, and things; Whose refers to possession; Where refers to place; When refers to time; Why refers to reason; What relates to things