Past Simple : 1) They played the football yesterday
2) I didn't do my homework
3) He spent a lot of money last month
Past Perfect (+continuous): 4) I had cleaned the room
5) I had been singing in the studio
6) My friend had painted a wonderful picture
Past Continuous :
7) I was doing my homework, when my mom came
8) She was cutting potatoes, while I was washing up
9) They were dancing in the club.