The question is which sentense is correct:
"You probably wanna know why are you not fluent"
or
"You probably wanna know why you are not fluent"
I suppose that the second variant is correct (subordinate clause), but I talked to a native speaker and he is sure that the word order in this case should be as in a simple question. He explains that this case is a rhetorical question.
" Both of the above are correct if you punctuate as shown. You probably want to know why you are not fluent. This is the correct indirect wording.
New words, one handy idiom, and a 2-minute quiz — delivered to your inbox to keep your streak alive.
You probably want to know "Why are you not fluent?"
You probably want to know "Why am I not fluent?"
Both of the above are correct if you punctuate as shown.
You probably want to know why you are not fluent.
This is the correct indirect wording.
Note that we write 'want to' but we commonly pronounce it as wanna.