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1. You walked to work.
    You didn't walk to work.
    Did you walk to work?
2. He wrote a book.
    He didn't write a book.
    Did he write a book?
3. We moved to a new house.
    We didn't move to a new house.
    Did we move to a new house?
4. They sold cars.
    They didn't sell cars. 
    Did they sell cars?
5. I wanted to go to the dentist.
    I didn't want to go to the dentist.
    Did I want to go to the dentist?
6. It rained yesterday.
    It didn't rain yesterday.
    Did it rain yesterday?