There is no past participle for nouns.
The past participle of "down" is "downed."
The past participle of "slow down" is "slowed down."
The past tense of "lie down" is "lay down", and the past participle is "lain down".
The past participle of "fell" is "fallen." For example, "She had fallen down the stairs."
The past participle of "do" is "done." The past participle of "have" is "had."
The past participle of "am not" is "have not been."
The past participle of "fell" is "fallen." For example, "She had fallen down the stairs."
The past tense of "lie down" is "lay down", and the past participle is "lain down".
Hare is regular so the past and past participle are both hared.He hared down the hill.
The past participle of "slow down" is "slowed down."
The past participle of "am not" is "have not been."
The past participle of "do" is "done." The past participle of "have" is "had."
The past participle of the word "have" is "had."
The past tense and the past participle is "answered".
The past tense of "have" is "had," and the past participle is also "had."
The past and past participle for "buy" is "bought."
"Sold" does not have any past participle; it is the past participle of "sell".
The past participle of "was" is "been" and the past participle of "were" is also "been".