1.Do you know the answer? You don't know the answer.
2.Does he have breakfast at 8.00? He hasn't breakfast at 8/00.
3.Does he love her? He doesn't love her.
4.Do some pupils wear uniforms? Some puplis dom't wear uniforms.
5.Does he trust you? He doesn't trust you.
6.Does the park close at dusk? The park doesn't cloes at dusk.
Короче, вот схема---> Do/does/did (если he, she, it, то DOES, если I,you,they,we, то DO, DID - прошедшее время), далее идет подлежащее - предмет, выполняющий действие , ну и остальная часть, вопросительный знак - ЭТО ОБРАЗОВАНИЕ ВОПРОСИТЕЛЬНЫХ ПРЕДЛОЖЕНИЙ. Теперь ОТРИЦАНИЕ - просто заменяешь DO-DON'T, DOES-DOESN'T, DID-DIDN'T