My 9 year old daughter said this to me during a ride to the Art Museum on Saturday.
"She and I were going to play on the playground." I corrected her.
I explained to her the easy way to figure this out. You just say each pronoun on its own and see if it sounds right.
"I [was] going to play..."
"She [was] going to play."
It clicked. She got it.
Then, I explained to her that sometimes "me and her" would be the right words ... if they were the object in the sentence.
"AJ was mean to me and her."
"AJ was mean to me."
"AJ was mean to her."
At this point, my little girl said that it was funny how many different words can be used to mean a person when you don't use their names. Ah, yes. Then, I told her we could even say "us" in the above sentence.
"AJ was mean to us."
My daughter then said something that reminded me of the discussion I was having here last week about 2 Peter 3:8-9.
She said: "The only problem with saying us, mom, is that no one knows who you mean."
The Lord is not slack concerning His promise, as some count slackness, but is longsuffering toward us, not willing that any should perish but that all should come to repentance. (2 Peter 3:9
Hmmm... so if I said,
"AJ was mean to us"
.... it could mean all the girls, the whole school, everyone in your class or ... just you and your friend.
Interesting, these pronouns.