<P><EM>An Introduction to English Grammar</EM> provides a comprehensive overview of all aspects of English grammar. The first part of the book (¿The Grammar¿) provides a step-by-step introduction to the key topics in English grammar. The second part (¿The Applications¿) shows how a grasp of these topics can be helpful in resolving usage problems, in developing a clear writing style, and in mastering punctuation and spelling. A whole chapter, ¿English in Use¿, is devoted to illustrating the grammatical features of a wide range of modern text types, including emails, Facebook pages, and ¿tweets¿. It also looks at the special grammatical features of English in everyday conversation. </P><P></P><P>Each chapter is followed by two sets of exercises. The first set can be used in self-study or in the classroom. The second set deals with more advanced topics, and can be used for classroom discussion or essay writing. </P><P></P><P>This fourth edition has been fully revised and updated and inclu