1. With whom did you discuss. 2. I have seen. 3. I entered, I saw, my mother was standing, cutting, she was cooking. 4. I heard, I ran, saw, a child was lying, crying, what has happened, why are you crying, have you hurt. 5. They went. 6. They have been. 7. He came, had, read, began. 8. When did your friend return, she returned, did you go, I didn't, I was. 9. Has your brother returned, he came. 10. Have you been, when were you, I was. 11. Where is your brother, he has just come, he is taking. 12. I saw, I understood, he was working, he was writing, did not notice. 13. I came