Change into passive voice: The police caught all the thieves before they could escape. Share with your friends Share 0 Taruna Singhal answered this Before they could escape, all the thieves were caught by the police. 2 View Full Answer Anees Anwar answered this Before they could escape, the police had caught all the thieves. 0 Khyati answered this Before they could escape, the police had caught all the theives -1