formed by the word to and a verb, a(n) _____ may be used as a noun, adjective, or adverb. user: a verbal which ends in -ing and is used as a noun is called a(n)____.
1. Formed by the word to and a verb, an infinitive may be used as a noun, adjective, or adverb. 2. A verbal which ends in -ing and is used as a noun is called a gerund.