servos sum, sed [med esse huiusj] credidi. Ego [huncj...]
consider-1-S-IMPERF you-S-ACC be-INFIN this-M-S-DAT and hold out-1-S-PERF business-N-S-ACC
Yes, I certainly know this man: he is my master. In fact, I am his slave, but I believe I was this man's. I used to believe this one was you; I even carried out business for this man.