This document provides a summary of conditionals and ways to express unreality in English grammar. It begins by distinguishing between real conditionals, which refer to likely or possible future events, and unreal conditionals, which refer to unlikely, untrue or impossible situations. It then examines the different verb tenses and structures used to form present, past and future real and unreal conditionals. The document also discusses using "wish" to express present and past regrets, as well as "if only" to convey wishes. Examples are provided throughout to illustrate the grammar points. Practice exercises at the end invite the reader to apply what they've learned by forming conditional statements based on pictures.