Complex sentence: The English gerund ends in "-ing" (as in "I enjoy playing basketball);" the same verb form also serves as the English present participle (which has an adjectival or adverbial function), and as a pure verbal noun.
Split into simpler sentences: The English gerund ends in "-ing" (as in "I enjoy playing basketball)." The same verb form also serves as the English present participle (which has an adjectival or adverbial function) and as a pure verbal noun.