I'm don'e my homework

[Mark A. Mandel]

Jim sez:
 >>>

For a class I took in the fall of 1977, I interviewed an engineer at one of
the sewage treatment plants in the Washington DC metro area.  He
complimented me on being well prepared for the interview by saying "You've
done your homework".  I was already familiar with the phrase, and even
recall it as being moderately common, but this is the first usage I heard
that I can nail down.
<<<

Jim, you're asleep. That's "You**'ve** done", not "You're done". It's the
absolutely straitghtforwarrd perfect tense.

-- Mark A. Mandel

(who is asleep himself)