Tidied.
The past participle of "tidy" is "tidied."
The past past participle of "tidy" is "tidied".
The past tense and past participle are both tidied.
The past participle is had.
Done is the past participle.
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."
The past participle of "swear" is "sworn."
The past participle of the word 'fall' is 'fallen'.
The word "invited" is the past participle of invite.
The simple past and past participle are both hopped.