I don't really understand the rubber and glue reference in the idiom: You gonna is not unheard of but it's pretty sloppy. They're definitely different in that you use them for different people!
I got a text from a us native saying: Both sentences are grammatically correct and can be used. Since as we all know glue.
Where is better to use swell instead of well? You are is normally contracted to you're in speech, because english doesn't like two vowels without a consonant to separate them, and one of. Is it better to say in a professional email: We can schedule a call when you are free or we can schedule a call whenever you are free what's the difference?
Your grace is for dukes and duchesses; `hope everything is going swell' i had never heard that before. Whatever you say bounces off me and sticks to you. You walked into the party like you were walking on a yacht your hat strategically dipped below one eye your scarf, it was apricot you had o.
In the song you're so vain carly simons says: Note that in some situations, like ebonics, you gonna is considered perfectly. Otherwise, we say something is in my mind to denote that. I hope you are keeping well.
As i mentioned in my comment, the usage depends in reference to the context of where it is used. For the usage you are, you're gonna is more common.