Hello 👋 I hope my response answers your question! past participle is a verb in a special form past perfect is tense in which past participle is used (had + the past participle)

Past participle is a form of verb, typically ending in -ed, which is used in forming perfect and passive tense. Past perfect is a tense which denotes an action or state as completed at or before a past time.

The past perfect is used to talk about things that have been completed sometime in the past. Past participles are the verbs used in the past and perfect tenses such as looked, eaten or broken.