1. You come, we shall still be packing. 2. When did you see. 3. I met, he was walking. 4. Have you ever acted, I have been doing. 5. The child is sleeping, he always wakes, somebody opens. 6. I have left, I shall take, Nick comes. 7. I had been reading, he came. 8. The play had not yet begun, the people were talking. 9. A little swallow was flying, his friends had flown, he had stayed. 10. What have you been doing. 11. I bought, I had lost. 12. We were walking, he had already told, that was, I had. 13. The moon had not risen, two stars were shining.