Beresford has just said that I would not have believed Sir James Peel Edgerton to be guilty unless, so to speak, he was caught in the act.
I probably never would have believed that Sir James Peel Edgerton was guilty unless I had seen him do it with my own two eyes.
mnli hypothesis: I probably never would have believed that Sir James Peel Edgerton was guilty unless I had seen him do it with my own two eyes. premise: Beresford has just said that I would not have believed Sir James Peel Edgerton to be guilty unless, so to speak, he was caught in the act.