https://www.quora.com/Is-it-grammatically-correct-to-say-me-and-my-friend
Grammatically correct is what educated native speakers say, not what they “
should say.”
We don’t use “me and my friend” as the subject of a sentence. We say “my
friend and I.”
As the object of a verb or a preposition, “me and my friend.” is
grammatically correct.
As the answer to a question such as “who’s there,” we might say “me and
my friend.” Some people would tell us, since what we’re saying is the
subject of a sentence we didn’t finish, or perhaps a predicate nominative
like “it’s me and my friend,” that we should use the subject case and say
“my friend and I.” But we don’t. If it’s only me, I say “it’s me,”
just as they say in French, “c’est moi.”
Some people say the first person pronoun, representing the speaker, should
always be last. We do that in the subject case, “my friend and I.” But in
the object case, usage varies. I say “me and my friend,” but my resident
expert says she would say “my friend and me.” At any rate, “me and my
friend” is grammatically correct, whether or not it’s “politically correct.
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