Been.
Studied.
The past participle is borne.
The past participle is found.
Arised or Arouse.
Past tense of do is did; past participle is done.
The past participle is drawn. The simple past tense is drew.
The past participle of "blow" is "blown."
The past participle of "lay" is "laid."
The past participle of "know" is "known."
The past particple of push is pushed.
No, "formed" is the past participle of "form."