Is it "my friend and I" or "my friend and me"?

Depends on the slot. My friend and I went… for the subject; for my friend and me for the object.

Is it "me and him went" or "he and I went"?

"He and I went." Subjects of a sentence take the subject forms he and I.

Quick answer Canonicalizes to Me vs. I

Is it "between you and me" or "between you and I"?

i · AnswerOne line, no lecture

"Between you and me." After a preposition, English always takes the object form.

ii · A little moreWhy this is the one to keep

Between is a preposition, and prepositions take objects: me, him, her, us. "Between you and I" sounds more formal to some ears, but it is grammatically wrong — no preposition in English pairs with I. When in doubt, drop "you and" and the answer is obvious.

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