Which is the correct form?
Tommy and she went to the store. OR She and Tommy went to the store.
I hear the second example much more frequently in conversation, but I believe the first one is actually grammatically correct.
Which is the correct form?
Tommy and she went to the store. OR She and Tommy went to the store.
I hear the second example much more frequently in conversation, but I believe the first one is actually grammatically correct.
Both are correct. It is purely a matter of preference and which makes more sense in the context of the sentence.
On a related note, when referring to one's self, order does matter (not grammatically, but stylistically,) and one should always use 'I' or 'me' as the last in the list as a nod to politeness. Something about always putting others before yourself.
Example:
John and I went to the store.
It took some convincing for Bob to give the details to Ted, Margaret and me.
Because 'she' is unnamed it suggests that she was mentioned just before this sentence and therefore 'She and Tommy went to the store' is better. This is because at the beginning of the sentence, she is given more importance and this position continues to give her more focus than Tommy.
Because 'She and Tommy' are the subject of the sentence you can use the plural form of the 3rd person 'they' (note: not 'them' and hence not Tommy and her') In the first sentence following, Tommy and his female companion are the object - hence 'them' and 'him'.
Alice's mother dropped them off in the parking lot and drove away. She and Tommy went to the store.
Tommy's mother dropped him and his girlfriend off in the parking lot and drove away. Tommy and she went to the store.
Grammatically, they are utterly equivalent, however, I have noticed that the pronoun is usually used first except in first person nominative.
So:
These are strictly conventions, not grammatical issues at all.