Simple
1. I got up at 10 o,clock this morning, had a breakfast, did some exercises before school.
2. My mother was a doctor, she used to work in the hospital.
continuous
1.yesterday I was reading a book during all day.
2. My sister was playing piano, while I was singing.
pas perfect
1. I had bought that bag, before you liked it in a shop.
2. She had closed a door, before I came.
present perfect
1. I have never seen you before.
2. She has already written him a letter.