I'm interested in English,__ __(变为反意疑问句）该怎么变?

I'm interested in English,__ __(变为反意疑问句）该怎么变?
I'm interested in English,__ __(变为反意疑问句）该怎么变?

I'm interested in English,__ __(变为反意疑问句）该怎么变?
am改成are
也就是aren't I?
习惯用法吧

I'm interested in English,ain't I?