2)didn't used to sent
3)did they used to study
4)are you used to live
5)used to have been
6)used to cooked
7)used to where
8)did used to wrote
2)didn't used to sent
3)did they used to study
4)are you used to live
5)used to have been
6)used to cooked
7)used to where
8)did used to wrote