This document discusses adverbs in Thai. It defines adverbs as words that modify verbs, adjectives, and other adverbs to provide more complete meaning. It provides examples of adverbs modifying verbs like "walks slowly" and adjectives like "very beautiful." The document then discusses the functions of adverbs, types of adverbs including manner, place, time, frequency, and degree. It explains the forms of adverbs and their positions in sentences. Finally, it provides exercises to practice identifying and using adverbs correctly.