"Noted down", although whether "down" is part of the verb is controversial.
There is no past participle for nouns.
Returned is the past participle (note spelling of participle) of return.
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 is sported.(Note that sport can be used as a noun, adjective and verb).
If "fell", meaning to strike down, is the infinitive or plural present, the past participle is "felled". If "fell" is the past indicative of fall, its past participle is "fallen".
Hare is regular so the past and past participle are both hared.He hared down the hill.
The past participle of do is done. The past participle of have is had.
The past participle of am is been. Not does not have a past participle
What is the past participle of do
The past participle of have is had....:) I have had...
Being is the present participle. The past participle is been.