Essential English Grammar is packed with easy-to-follow explanations and summaries, practical tips on how to avoid common grammar mistakes, interesting facts about the historical and regional use of English and a special section on punctuation. This clear, straightforward guide to modern English grammar will help you to improve your knowledge of the language and perfect your grammar. NOT GOT MUCH TIME? One, five and ten-minute introductions to key principles to get you started. AUTHOR INSIGHTS Lots of instant help with common problems and quick tips for success, based on the author's many years of experience. TEST YOURSELF Tests in the book and online to keep track of your progress. EXTEND YOUR KNOWLEDGE Extra online articles at www.teachyourself.com to give you a richer understanding of English grammar. FIVE THINGS TO REMEMBER Quick refreshers to help you remember the key facts. TRY THIS Innovative exercises illustrate what you've learnt and how to use it.