They were ____ guilty.
- Votes: 282
- Comments: 5
- Added: November 2013
Context would be helpful as "proved" means it was found correct this time, but "proven" means that it has become standard - the proof works all the time.
both are used in a passive construction as such both the past participle forms can be used.
Good answer, Richard
So the word "prove" has 2 past participles : "proved and proven"?