had
The past participle of "sing" is "sung."
The past participle of "tell" is "told."
The past participle of "come" is "come."
The past participle tense of "see" is "seen."
chided (past tense) and chidden (past participal)
The past participle of "meet" is "met."
Knee is a regular verb so both past and past participle are knee + ed kneed
The past tense of "hurt" is "hurt," and the past participle is also "hurt."
yes... "winding" is a *participle*... not a "participal"...
A participial adjective is a present or past participle that is used to modify a noun.
a participal phrase is this