>>20776332there's a difference between proper grammar and being understandable.
"would of" may not be grammatically correct, but it's meaning is clear. It's an eggcorn. When spoken, "would of" and "would've" sound virtually identical. "Would of" doesn't mean anything on its own, so it's not like mixing they're, there or their. Unlike
Although our language follows certain rules that speakers usually follow, these rules are not always the same as the grammar you were taught in english class. That grammar tends to be something arbitrarily defined by someone of authority, rather than what has naturally arisen through the evolution of language.
Get that stick out of your ass.