Поставить предложения в отрицательную форму! 1) jack gets up at six o clock in the morning. 2) he is a shop assistant. 3) my father is reading a book now. 4) i can ski quite well, and i can skate. нужно! заранее )

1) Jack doesn*t get up at six o*clock in the morning.
2) He is not a shop assistant.
3) My father isn*d reading a book now.
4) I can*t ski quite well, and I can*t skate.