1) Tiny wrote songs for pop-singers last year.-
Tiny didn`t write songs for pop-singers last year.
2)Billy was in Antarctica three days ago.-
Billy wasn`t in Antarctica three days ago.
3)The boy drank cold and dirty water yesterday.-
The boy didn`t drink cold and dirty water yesterday.
4)Jill played football an hour ago.-
Jill didn`t play football an hour ago.
5)Tim and Tom were in the desert a week ago.-
Tim and Tom weren`t in the desert a week ago.