Clauses
Noun Clauses
A noun clause is a dependent clause that functions as a noun — it can be a subject, direct object, predicate nominative, or object of a preposition. It is introduced by that, whether, if, or an interrogative word (who, what, which, when, where, why, how). In diagrams, a noun clause mounts on a pedestal just like an infinitive.
Noun Clause as Predicate Nominative
“The trouble is that she doesn't do her homework.”
Noun Clause as Direct Object
“She wondered whether he was sorry he had hurt her.”
Noun Clause as Subject
“Jeff is always uncertain about which pages he should study.”