Kogda priexala mama, Petja sidel v tjur'me pjat' let Petja prosidel v tjur'me pjat' let
When PF-arrive-pst.sg.fem mom, Peter sit-IMP-pst.sg.masc.in prison five years Peter PF-sit-pst.sg.masc.in prison five years
When mom arrived, Peter was in prison for five years Peter was in prison for five years