Помогите ! Чрезвычайная срочность! Нужно поставить предложения в отрицательную форму

I didn't send him a letter last week. We didn't want to ask him about his friend Your friends weren't glad to see us He wasn't a student five years ago Mary didn't want to see the film again Peter didn't give me his bike yesterday Your parents didn't live in Moscow last year You weren't in Elez last week You didn't meet your friend yesterday