he doesn't often get up at 6
does he often get up at 6?
they are not teachers
are they teachers?
(-) He doesn't get up at 6
(?) Does he get up at 6 ?
(-) They aren't teachers
(?) Are they teacher ?
a,He often gets up at 6
- He doesn't get up at 6
? Does he get up at 6?
b,They are teachers
- They aren't teachers
?Are they teachers?