Essential English Grammar Guide by AG is your complete reference to mastering the structure and use of English grammar. Whether you’re a beginner, an ESL learner, or reviewing grammar rules, this clear and compact guide covers: ✅ All major English tenses with usage explanations ✅ Key modal verbs and how to use them ✅ Articles, conditionals, and prepositions ✅ Comparative and superlative adjectives ✅ A grammar glossary and summary tables This book is ideal for self-study, quick reference, or classroom use . Designed for clarity and simplicity, it’s your go-to guide for confident grammar.