1.YouareinClassone.
youaren'tinClassone
areyouinClassone?
yes,I'minClassone.
no,I'mnotinClassone.
2.Theseareboxes.
therearen'tboxes.
aretheseboxes?
yes,theyareboxes
no,theyaren'tboxes.
3.Theyareontheshelf
Theyaren'tontheshelf
aretheyontheshelf?
yes,theyareontheshelf
no,Theyaren'tontheshelf
4.Itisaredapple.
isitaredapple?
yes,itisaredapple.
no,itisn'taredapple.