1) Данное: If don't do my homework now, i won't be able to go out later.
Вопросительное: Will I be able to go out later, if I don't do my homework?
2) Данное: Charlie will eat your chips if you don't finish them.
Отрицательное: Charlie won't eat your chips if you do finish them.
3)Данное: You won't get there on time if you need anything.
Вопросительное: Will I get there on time if I don't need anything?
4)Данное: If we go to Sarah's party, we will have a good time.
Отрицательное: If we don't go to Sarah's party, we won't have a good time.
5)Данное: If Kate go to America I will miss her.
Отрицательное:If Kate doesn't go to America I won't miss her.