In this book you will find a brief overview of English grammar. The book will be useful to everyone who has no time to study or who does not have time to study grammar separately, or those who are unexpectedly stuck on a specific section, for example, on articles, tenses, pronouns, modal verbs, subjunctive mood, etc. The reference book has the necessary basic information on almost all sections of grammar. They will help you quickly understand the general structure of the English language, and your study will go much faster and more efficiently.