This document discusses how to form comparatives and superlatives in English. It explains that to form comparatives, one-syllable adjectives add -er, two-syllable adjectives ending in -y change the y to i and add -er, and adjectives with two or more syllables use "more." To form superlatives, one-syllable adjectives add -est, two-syllable adjectives ending in -y change the y to i and add -est, and adjectives with two or more syllables use "most." It provides several examples of forming comparatives and superlatives with different adjectives.