formerly(at some time in the past) adverb [UK: ˈfɔː.mə.li] [US: ˈfɔːr.mər.li]He didn't deny that he was formerly involved in the program. = Él no negó que anteriormente estuvo involucrado en el programa.
heretofore(up to the present time) adverb [UK: ˌhɪə.tuː.ˈfɔː(r)] [US: ˌhɪr.tə.ˈfɔːr]
previously(at an earlier time) adverb [UK: ˈpriː.vɪə.sli] [US: ˈpriː.viə.sli]I previously worked as a translator. = Anteriormente trabajé como traductor.