This document discusses comparatives and how to form comparisons in English. It explains that comparatives are used to compare two things and outlines several rules: one-syllable adjectives take -er, two-syllable adjectives ending in y take -ier, and those with more than two syllables use 'more' in front. Irregular adjectives like good and bad have unique comparatives as well. It also discusses using 'as...as' for comparisons of equality and 'not as...as' or 'less...than' for comparisons of inequality.