This document discusses word formation in English by adding suffixes to create new verbs and nouns. It provides examples of adding "-ise" and "-en" to adjectives to create verbs, "-tion" and "-sion" to verbs to create nouns, adding suffixes like "-er" and "-ant"/"-ent" to verbs to create agent nouns, and adding suffixes like "-y", "-en", and "-th" to adjectives to create new adjectives describing concepts like length, width, and color. The document demonstrates how suffixes can be added systematically to one part of speech to form new words in another part of speech following common patterns in English morphology.