In February I discussed a usage item that popped up in a crime novel by Michael Connelly (‘Harry Bosch, trainee prescriptivist’). In fact there were a couple of related items: the use of done for finished (‘I’m done eating’), and the use of done in phrases like I’m done my work, as opposed to I’ve done my work or I’m done with my work.
The first of these is really a non-issue, peeved about only by peevers who love peeving peevily. The second one is more interesting, as it’s a dialectal usage apparently little known beyond those areas where it’s perfectly normal. I’m done my homework may grate on ears unused to it, but it’s in no way wrong: it’s just nonstandard.
The next month, by complete coincidence, I encountered the construction again, this time in non-fiction. Even better, it came with lexicographic expertise and sociolinguistic commentary, because the source was Word By Word: The Secret Life of Dictionaries by Kory Stamper, a writer and editor of dictionaries at Merriam-Webster.