Переведите в косвенную речь, пожалуйста, предложения под номером : 6,8, 11, 12, 13, 14, 15

6 if he had grown to care for the boy. 8 if the wand in his hand knew its last owner had been disarmed. 11 if they had seen Remus. 12 if it would make him truly invulnerable. 13 if he was saying there was... 14 if he could (was able to) mend that. 15 if he was sure they couldn`t do anything.