1. (-) susan didn't use to live in Paris.
(?) did susan use to live in Paris?
2. (+) they used to commute from New York to London
(?) did they use to commute from New York to London
3. (+) your mother used to teach at the local school
(-) your mother didn't use to teach at the local school
4. (+) he used to cry a lot
(?) did he use to cry a lot?
5. (-) jane didn't use to work for a non-profit organisation.
(?) did jane use to work for a non-profit organisation.
6. (+)jim used to own an old car
(-) jim didn't use to own an old car
7. (+) this house used to belong to my family.
(?) did this house use to belong to my family?
8. (-) my brother use to go swimming when he was young.
(?) did my brother use to go swimming when he was young?