The book covers a comprehensive study of the four parts of speech: Adverbs, Prepositions, Conjunctions, and Interjections. While the other four elements have their dedicated books, this one thoroughly examines these components: Adverbs, Prepositions, Conjunctions, and Interjections. It includes detailed definitions, classifications, forms, and formations and ample examples for each section. The content is suitable for high school students and is designed to facilitate easy comprehension. In addition to addressing Adverbs, the book also includes discussions on Degrees, Forms & Formation, and the Position of Adverbs in sentences. It delves into the Adverbial Function of Prepositions, highlights the Role of Conjunctions, and provides numerous examples of how different Interjections express various emotions and the speaker's feelings.