The document discusses how to form the comparative and superlative forms of adjectives in English. It explains that one-syllable adjectives form the comparative by adding -er and the superlative by adding -est. Two-syllable adjectives ending in -y form the comparative and superlative by changing the -y to -ier and -iest. All other adjectives use "more" and "most" before the base adjective to form the comparative and superlative. It provides examples of irregular adjectives like "good" and "bad" that have unique comparative and superlative forms.