USUALLYintroduced by a relative pronoun.Relative pronouns:that which who whom whose
A word that introduces a noun clause often has another function within the clause. For example, the introductory word may be used as the subject of the clause.Common Introductory Words for Noun Clauses:who, whoever, which, whom, whomever, whichever,what, whatever, that
An adverb clause is introducedby a subordinating conjunction.Common Subordinating Conjunctions:after, in order that, since, when,while, although, because, so, that, whenever, before, than, where, wherever, whether, unless, as soon as
After Jacob and Lars ate pizza, theyhelped the new girl who tripped over Joseph's books. Morgan decided to ride in the car with whoever was the safest driver. What I want you to study is not always what you choose to study.