Dear Friends,
[1] I used to go to the movies often when I was in college.
How would you put the sentence above into a negative or question form? I'm curious.
I'd say, for the negative,
[2-1] I usedn't to go to the movie often when I was in college,
or
[2-2] I didn't used to go to the movies often when I was in college.
For the interrogative, I would say,
[3-1] Used you to go to the movies often when you were in college?,
or
[3-2] Did you used to go to the movies often when you were in college?
Best wishes,
Hiro/ Sendai, Japan