This document provides an introduction to conditionals and their different types. It discusses the order of dependent and independent clauses in conditional sentences. It then defines the relevant verb forms used in conditionals such as present, past, future, present conditional, perfect conditional, present continuous conditional, and perfect continuous conditional. The rest of the document explains the four main types of conditionals - Type 0, Type 1, Type 2, and Type 3 - including their syntax, examples, and a practice section with fill-in-the-blank questions.