The past participle is changed.
The past participle of "change" is "changed."
The past participle of the word "have" is "had."
The past participle of the word "do" is "done."
The past participle of the word "Find" is the word "Found."
The past participle of the word "pick" is "picked".
The past participle of the word "finish" is "finished."
Hit is the past tense and past participle of hit. The word doesn't change.
Quit doesn't change in the past tense or for the past participle. Present and past tense are quit; the past participle is quit, as well.
The past participle of the word "pick" is "picked".
The past participle of the word "have" is "had."
The past participle is changed.
The word "it" does not have a past participle as it is a pronoun. It is only verbs that have a past participle.
The past participle of the verb to have is had.
The past participle of the word "do" is "done."
The past participle of the word "Find" is the word "Found."
The past participle of the word graduate is graduated
The past participle of the word 'fall' is 'fallen'.
The word "invited" is the past participle of invite.