This box is not on the table. (-)
Is this box on the table? (?)
Her aunt hasn't got two children. (-)
Has her aunt got two children? (?)
Those crocodiles are not big. (-)
Are those crocodiles big? (?)
Have they got a father? (?)
They haven't got a father. (-)
They can't swim very well (-)
Can they swim very well? (?)
My uncle is not a driver. (-)
Is my uncle a driver? (?)
These brown bears are not under the chair (-)
Are these brown bears under the chair? (?)