A gerund phrase is a noun phrase with a gerund as its head. This may be a single-word phrase, in which case it is simply a gerund; or it may be a multi-word phrase, in which case it can consist of a gerund plus a direct object, adjective or adverbs, and/or a prepositional phrase.
- Swimming (gerund)
- Swimming in the sea (gerund+prepositional phrase)
- Swimming quickly (gerund+adverb)
- Quick swimming (adjective+gerund)