Скаждым предложением надо сделать отрицательно,неотрецательное,вопросительное предложение предложения 1).i am praying. - ? 2).is he drinking? - + 3).they are not caring

1.I am praying.
-I am not playing.
Am I playing?
2.Is he drinking?
-He is not(или isn't) drinking.
+He is drinking
3.They are not caring -
They are caring. +
Are they caring? 
(Вроде так...)