In the second episode of season 6 of the HBO series Girls, a girl is telling her grandma, "You've really did it." in a context of passing years. It's totally incorrect so please, can someone explain this to me? Why didn't she say, "You've really done it." ?
closed as primarily opinion-based by Cascabel, Hank, jxh, Mari-Lou A, NVZ Mar 1 '17 at 13:26
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Television shows are usually comedic. Like @Lambie said,
Because she is an uneducated speaker, that's why. [...] It's marked as an uneducated sociolect and that speaker would also probably say: She don't like me.
There are numerous times when television shows purposely have their character speak incorrect English. This is, like I said above, for comedic relief. Some people find grammatical stupidity funny.
EDIT: Kind of like the new popular meme: "Cash me ousside how bow dah!"