Yes they do.
The past participle of "get" is "gotten" (American English) The past participle in British English is generally "got"
The past participle of "spit" is "spat" in UK English and "spit" in US English.
The simple past tense is got. The past participle is generally got in British English and gotten in American English.
Had.
The past participle of ravel is ravelled. (Or raveled in US English)
The past participle of "think" is "thought". ("thinkl" is not an English verb.)
The past participle of signal is signaled. (Or signalled in British English)
The past participle of worship is worshiped. (Or worshipped in British English)
The past participle of "dream" is "dreamed" in American English and "dreamt" in British English.
No. "Running" is a present participle. (As far as I know, no past participle in English ends in the letters "ing").
The past participle of get is gotten. (Or got in British English)The past participle of fall is fallen.The past participle of drive is driven.The past participle of cost is cost.The past participle of hang is hung.
"Enjoy" is a regular English verb; therefore, its past participle is "enjoyed".