They start work.
They don't start work.
Do they start work?
I wait for him.
I don't wait for him.
Do I wait for him?
He reaches the house.
He doesn't reach the house.
Does he reach the house.
They start work.
They don't start work.
Do they start work?
I wait for him.
I don't wait for him.
Do I wait for him?
He reaches the house.
He doesn't reach the house.
Does he reach the house.
1 Do they start work ?
2 I don’t wait for him
2 Do I wait for him?
3He doesn’t reach the house
3Does he reach the house?