My English Grammar titled "Modern Functional Grammar with communicative English" (4th edition), a Bengali and English mixed grammar and composition book is being used widely throughout the country at school, college and university levels since January 2004. This widely accepted book has been translated and designed for the English medium students at 'O' level and 'A' level schools including general education of our national curricula specially for cadet college students ranging from class vi to xii. I expect that this book will be a very useful language guide for all types of English learners. This book is specially designed for the English medium students to teach them good English through English language, so that they can guard themselves against grammatical errors in their writings and make themselves conversant with English both written and spoken. The book will definitely help the students improve their writing and speaking skills and enable them to take any sorts of competitive exam. This book will also give the students the opportunity of mastering the art of writing different sorts of compositions.