In Sambahsa, the ending of the past participle is either t or (e)n (same meaning). "By" (for the passive) is ab. "To call" is kal, kal. Translate "You are called by the (male) master", using the 2° person plural (but without the personal pronoun) and the participle in -t.
?You are called by the master.|Ste kalt ab iom mayster.|14