Memory Game Past Modals of deductionOnline version A pelmanism game to practice past modals of deduction. Students must match each situation card to the deduction card. by Jessica Oliveira They must have started dating. I saw your brother this morning. Katie looks tired. It couldn't have been him. He's traveling. Lucy's crying. You can't have been sick. You may have left it in the car. I saw Jim and Anna together at the movies. I can't find my wallet. They might have been in a hurry. Jack looks very happy. She might have watched a sad movie. Your brothers left early. She must have worked a lot. I saw you playing soccer. He must have passed his test.