Proper Use of "Me" and "I"

Two of the most common words used incorrectly, both in written material and in speech, are "me" and "I."

Technically, "I" is a nominative pronoun used as a subject of a sentence, while "me" is an objective pronoun, used as an object. The problem usually arises when connecting objects in a sentence. "I" is not an objective case word, but it is used simply because to most people it just sounds better.

Using "I" works for the nominative case when you and the other person are subjects of a sentence; however, if you and the other person are objects of the sentence, using "I" is not correct.

For example, "Mary and I are going to the conference" works. "You" and "Mary" are subjects of the sentence. Remove "Mary" and you have, "I (am) going to the conference."

Being objects in a sentence changes correct structure. Simply leave out the second object(s), or person(s). For example:

You may be tempted to write or say, "Would you like to join Mary and I at the conference?" By removing the second object (Mary) you have, "Would you like to join I at the conference?" Now try, "Would you like to join me at the conference?" It's easy to see that the proper sentence should be, "Would you like to join Mary and me at the conference?"

It really is just as simple as removing that second object. Let's try it again:

"Please explain proper word choice to Christine and I."
"Please explain proper word choice to Christine and me."
Remove the second object (Christine) and you have: "Please explain proper word choice to I," or, "Please explain proper word choice to me." See how easy it is to recognize the proper sentence?
"Please explain proper word choice to Christine and me."

Of course there are some instances where you can avoid your own internal dilemma by simply using the first-person plural and stating, "Would you care to join us at the conference?' or, "Please explain proper word choice to us."