This document discusses comparative and superlative forms of adjectives in English. It explains that the comparative form uses "-er" or "more" to compare two items, while the superlative form uses "-est" or "most" to compare three or more items. Some adjectives have irregular forms. The document provides examples and guidelines for using comparatives and superlatives correctly. It also discusses unusual expressions that follow the pattern "the ADJECTIVE + er, the ADJECTIVE + er".