This document discusses the formation of comparative and superlative adjectives in English. It explains that adjectives of two or fewer syllables ending in -y form the comparative with -ier and the superlative with -iest. Adjectives ending in an unstressed vowel typically use -er and -est. Adjectives of three or more syllables use more/less or most/least in front of the adjective. Adjectives ending in -ing, -ed, -ious, and -ful also use more/less and most/least. It provides examples of usage in comparisons.