Top 50 Grammar Mistakes This book focuses on the most commonly made grammar mistakes by non-native English speakers. This means that you can set yourself a reasonable target. So rather than trying to learn all English grammar, just concentrate on those issues that tend to be used the most frequently and/or tend to create the most misunderstandings.Each chapter contains: Examples of typical mistakes. Examples of correct usage. Rules / explanations. A short exercise where you can immediately practise what you have learned. Additional exercises. Keys to all exercises. Patron Membership Required You must be a Patron member to access this content.Already a member? Log in here