In Kathryn Stockett's The Help one of the main characters Eugenia "Skeeter" Phelan speculates about mate's hair:
I wonder, if I pushed the top of her head, would aerosol spray out of her mouth.
Intuitively this sounds just right, but..
Here come my questions:
Why aerosol would is inverted? To avoid using of two "if"?
I wonder if aerosol would spray out of her mouth, if I pushed the top of her head.
Is it correct?
How to explain this from grammatical point of view?