There are two types of participles:
* Present participles: These are formed by adding "-ing" to the base form of the verb. They can act as adjectives (e.g., "running water", "a smiling face") or nouns (e.g., "swimming is good exercise", "the running of the bulls").
* Past participles: These are often formed by adding "-ed" or "-en" to the base form of the verb. They can also act as adjectives (e.g., "broken glass", "a written report") or nouns (e.g., "the wounded were taken to the hospital", "the fallen leaves").
Let me know if you'd like more examples or a deeper dive into how participles work in different grammatical contexts!