Here's why:
* Participles are verb forms that act as adjectives, describing nouns or pronouns. They can be present participles (ending in "-ing") or past participles (often ending in "-ed" or "-en").
Examples:
* Running water (present participle modifying "water")
* Broken window (past participle modifying "window")
Other verbals, like infinitives and gerunds, can function as both modifiers and other parts of speech:
* Infinitives (to + verb) can be used as nouns, adjectives, or adverbs.
* To sleep is my favorite activity. (noun)
* The best place to swim is the lake. (adjective)
* I went to sleep. (adverb)
* Gerunds (verb + -ing) can be used as nouns, subjects, or objects.
* Swimming is good exercise. (noun)
* Hiking is my favorite hobby. (subject)
* I enjoy reading. (object)
Let me know if you'd like more examples or further explanation!