This document discusses comparative and superlative forms in English. Comparative forms add "-er" to short adjectives or "more" for long adjectives followed by "than" to compare two things. Superlative forms add "-est" to short adjectives or "most" for long adjectives to compare more than two things or indicate the highest degree. Examples are provided such as "Merida is smaller than Portuguesa" in comparative form and "Merida is the most beautiful city" in superlative form.