Напишите 3 утвердительных и 3 отрицательных предложения в Past Progressive

1. When I came home my sister was playing with her doll. When I came home my sister wasn't playing with her doll. 2. I was cooking dinner when my mother came home. I wasn't cooking dinner when my mother came home. 3. While I was cleaning my room my mother was washing the dishes. While I was cleaning my room my mother wasn't washing the dishes.