Here's why:
* Past Participle: This verb form is used to create perfect tenses (present perfect, past perfect, future perfect). It can also be used as an adjective.
Examples:
* Present perfect: I have eaten breakfast.
* Past perfect: He had studied for the exam.
* Future perfect: She will have finished the project by tomorrow.
* Adjective: The broken chair was unusable.
Note: The past participle form is often confused with the past tense. While they sometimes have the same form (e.g., "walked"), they have different functions.
Let me know if you have any other questions!