A gerund phrase is a gerund plus any complements or modifiers: Singing the national anthem is traditional at many sports events. An infinitive is a verbal that is usually preceded by the word to. It is used as a noun, an adjective, or an adverb: I never learned to dance. (noun) She has an errand to run. (adjective) I will be happy to help. (adverb). ... - tailieumienphi.vn