A participle functioning as a verb typically takes the form of a present participle (ending in -ing) or a past participle (usually ending in -ed, -en, or -t). Here’s an example sentence:
"The dog barking loudly woke up the baby."
In this sentence, "barking" is the present participle of the verb "bark,” and it is functioning as part of the verb phrase that describes what the dog is doing.