They built a house yesterday. They will build a house tomorrow. Написать отрицательное и вопросительное должно получится 4 предложения

1) They didnt build a house yesterday.
     Did they build a house yesterday
2) They will not (или wont) build a house tomorrow.
     Will they build a house tomorrow

Did they build a house yesterday
They didn build a house yesterday.
Will they build a house tomorrow
They will not build a house tomorrow.