This document discusses adjectives and their usage. It defines adjectives as words that describe or modify nouns. It explains that adjectives usually appear immediately before the noun they modify. Adjectives can also express degrees of comparison, such as using -er and -est endings. The document lists some common irregular comparative and superlative forms. It then discusses adjectives that are followed by specific prepositions like "on" and "of" and provides examples of adjectives that take these prepositions. Finally, it provides exercises for learners to practice using adjectives correctly.