This document provides instruction on confirming information using negative questions and tag questions in English. It explains that negative questions can be used to ask for confirmation of something believed to be true or express surprise that something has not happened. Tag questions, consisting of a short question added to the end of a statement, are used to confirm or encourage a reply. The document reviews the formation of negative questions and tag questions based on tense, verb type, and meaning. Examples are provided to demonstrate their use. Exercises at the end practice applying these question structures in conversations.