Would you please tell me which is the correct verb tense? <br/><br/>1. He was supposed to [meet, have met] Mr Bishop at the airport two hours ago, but he didn't. <br/><br/>2. Sam was supposed to [work, have worked] tonight, but he just called in sick. <br/><br/>3. Sam [is] supposed to work tonight, but he just called in sick. <br/><br/>Thank you very much.