What are three types of verbal?

It seems like you're asking about the three types of verbals in English grammar. Here they are:

1. Gerunds: These are verbs that act as nouns. They end in "-ing".

* Example: Swimming is my favorite hobby.

2. Participles: These are verbs that act as adjectives. They can be present (ending in "-ing") or past (usually ending in "-ed" or "-en").

* Example: The falling leaves were beautiful. (present participle)

* Example: The broken window needed repair. (past participle)

3. Infinitives: These are verbs that are usually preceded by "to."

* Example: I want to learn to play the piano.

Let me know if you'd like to explore any of these types of verbals in more detail!