ground
The past participle for "grind" is "ground."
Both the simple past and the past participle are ground.
The past tense and past participle are both ground.
Ground.
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."
I am grinding the coffee. (present tense) I ground the coffee. (past tense) I will grind more coffee. (future tense)
The past participle of "swear" is "sworn."
The past participle of the word 'fall' is 'fallen'.