I wanted to confirm that I do not have an private lesson tomorrow but I'm not sure what to write. Often, negative questions as I write them seem to come off as a positive question. Example
That seems like it's a positive as in
I have a private lesson reservation, don't I?
Whereas what I want to ask is
I do **not** have a private lesson tomorrow right?
I end up guessing and wrote
Basically I just took the
か off but something about that doesn't feel right or doesn't feel actually polite.
Note I want to effectively say "I want to confirm there is NO lesson, right?" and not "I want to confirm there IS a lesson, right?"
The difference is important because by asking the positive "There's a lesson right?" it will make people think that I believe there is a lesson and if they forgot they'd better rush to get one ready quickly. Where as that is not my intention. My intention is to confirm there is no lesson.
What is the correct way to politely confirm a negative situation?