Yep, it's another sanctimonious grammar-Nazi thread, so I'm going to get in early and tell all the bleeding heart virtue signallers who usually jump on these threads to do one, straight out of the gate. I'm interested in the experiences of others regarding what appears to be some sort of epidemic (at least on Facebook) or a near-ubiquitous grammatical blind spot in modern written English. For context, I live in an upcoming area of the SE but with an inescapably working class heritage and large council estate community, although this trend is by no means limited to the local FB community pages and is something that I see from even university-educated friends. How has 'could of' snuck in almost unremarked? Obviously as a corruption of the enunciation of the contraction 'could've' when spoken, but even then it makes no sense, if given even the slightest thought. Noone is saying, for example, 'Did you of one of my biscuits?', but the application of 'could of' seems almost universal in some circles. I accept that its contextual use means that nearly everyone involved understands the meaning and intent, but it's an inaccuracy that appears to be gaining continued traction. Does it make anyone else cringe, or do I just need to get back in my cage and chill the fuck out?