This document discusses how to make comparisons using adjectives in English. It explains that one-syllable adjectives form the comparative with "-er" and superlative with "-est". Two-syllable adjectives can also take "-er" or can be compared as longer adjectives by using "more" and "most". Some irregular adjectives like "good", "bad", and "old" have unique comparative and superlative forms. Examples are provided to demonstrate how to change sentences to the comparative and superlative forms.