This document discusses gradable and non-gradable adjectives and adverbs. Gradable terms like "hot" can vary in intensity using modifiers like "very" or "pretty." Non-gradable terms like "dead" do not allow for variation and have no middle ground. While most non-gradable terms are used alone, some can be used with non-grading adverbs like "completely terrified." The document also provides examples of emphatic expressions that intensify verbs.