This document provides an overview of noun clauses, including different types of noun clauses introduced by question words, who/what/whose, if/whether, and that. It discusses the structure and usage of noun clauses, as well as how to write quoted and reported speech. Key topics covered include question word order in noun clauses, verb forms in reported speech, and common reporting verbs like tell, ask, and answer/reply. Exercises are provided throughout to help readers practice identifying and using different types of noun clauses.