Parts of the Sentence – Verbals
A verbal is a verb form used as some other part of speech. There are three kinds of verbals: gerunds, participles and infinitives.
A gerund always ends in -ing and is used as a noun. Example: Eating is fun.
A participle is used as an adjective and ends various ways. A present participle always ends with -ing as does the gerund, but remember that it is an adjective. A past participle ends with -ed, -n, or irregularly. Examples: played, broken, brought, sung, seeing, having seen, being seen, seen, having been seen.
An infinitive is to plus a verb form. It can be a noun, an adjective, or an adverb. Examples: to be, to see, to be seen, to be eaten.