1- I didn`t see Mary on the party yesterday
2- They didn`t send emails to their parents
3- I didn`t go to school last week. 
4- She didn`t cut her hair
5- John didn`t forget about my birthday
6- You didn`t drink the apple juice. 
7- Lesley didn`t sleep on his house
8- They didn`t stay at the party entire time. 
9- He didn`t play the piano
10- I didn`t do the homework