Referring to (say) some computer code, a table, or whatever:
"It sits there and does it on its ownsome."
Should be its or it's ?
(Unrelated aside on spelling of ownsome. https://www.thefreedictionary.com/ownsome I'd say ownsum is also a popular spelling, perhaps emphasizing the slang aspect.)
it'swhenits(the possessive) is required is a very annoying error, which does a very great deal to make a person seem illiterate. – Michael Harvey Oct 21 '23 at 15:03