David Shariatmadari, "That eggcorn moment: If you’ve been signalled out by friends for saying ‘when all is set and done’, you’re not alone – linguists even have a word for it", The Guardian 9/16/2014:
Learning your mother tongue might seem effortless, but doesn’t always go without a hitch. In particular, you may hear certain sets of words and break them down wrongly in your head. So long as your version is plausible, sounds the same, and you’re not asked to write it down, the error can persist for years. I was in sixth form when I realised my version of “as opposed to” wasn’t widely shared. I thought it was “as a pose to”, which in my head implied some kind of challenge to an existing idea, like posing a question.
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