Degree of comparison refers to the different forms of an adjective or adverb that indicate the intensity or relative quality of a person, thing, or action. There are three degrees of comparison: positive, comparative, and superlative . English Grammar Degree of Comparison Rules and Uses. Common Errors in Positive, Comparative, Superlative degree with Examples, Exercise. Useful for Competitive and Academic Exams. Degrees of comparison are an important part of English grammar that help us compare the qualities of nouns. There are three types: positive, comparative, and superlative . Learn how to form and use adjectives and adverbs in different degrees of comparison : positive, comparative, and superlative. See rules, examples, exercises, and common mistakes to avoid.