Student or Learner
How to compose correct question with word "can't"?
Why I can't?
Why can't I?
In my opinion correct answer is 1st, but I am curious and I would like to know correct answer without doubt =)
In questions, we usually put the (first) verb first.
Where are you going?
When did she arrive?
Why can't I do that?
How often do you come here?
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.