This document summarizes different types of adjectives and how to form their comparative forms in English. It discusses 1-syllable adjectives, 2-syllable adjectives ending in -y, long adjectives, and irregular adjectives. For 1-syllable adjectives, the comparative is formed by adding -er. For 2-syllable adjectives ending in -y, the -y is dropped and -ier is added. Long adjectives use "more" before the adjective. Irregular adjectives include good/better and bad/worse.