1. Gerunds: These are verb forms ending in "-ing" that act as nouns.
* Example: *Swimming* is my favorite exercise. (The gerund "swimming" is the subject of the sentence.)
2. Infinitives: These are verb forms that typically start with "to" and act as nouns, adjectives, or adverbs.
* Example: I want *to eat* pizza. (The infinitive "to eat" is the object of the verb "want".)
3. Participles: These are verb forms ending in "-ing" or "-ed" that act as adjectives.
* Example: The *broken* vase was a valuable heirloom. (The participle "broken" describes the vase.)