1.nick suggested if we didn't go to london by plane.
2.the headmaster forbade that we didn't be late to school
3.the mother asked me that i washed the dishes after supper
4.the conductor said that we showed our tickets.
5.the man said that him didn't litter around.(здесь с местоимением не уверен)
6.the doctor recommended went to bed before 11 o'clock.
7.the robber demanded that we gave him all our money.
8.my friend asked if i could help him tomorrow if i had time.
9.my mother insisted that i would wear a white shirt and black trousers...(дальше не видно)