By (author)  Domingo Cheng

This book fully explains one of the most important elements in English grammar - verbs and tenses, especially

• the use of different tenses and passive voice
• regular & irregular verbs
• conditional sentences
• subject-verb agreement
• participles & participle phrases
• infinitives & gerunds
• perfect infinitives
• modal verbs
• inversion
• reported speech
• past subjunctive