"I" is used as the subject of a verb. This means it's the person or thing performing the action.
* Examples:
* I went to the store.
* I love to read.
* I am happy.
"Me" is used as the object of a verb or preposition. This means it's the person or thing receiving the action or being acted upon.
* Examples:
* John gave the book to me. (object of the preposition "to")
* The dog chased me. (object of the verb "chased")
* My mom baked a cake for me. (object of the preposition "for")
Common Mistakes
A common mistake is using "me" when "I" should be used, especially in compound subjects.
* Incorrect: Me and John went to the park.
* Correct: John and I went to the park.
Tricky Situations
* "It's me" vs. "It's I": Both are technically correct, but "It's me" is considered more natural in everyday speech.
* "Between you and me": While "between you and I" might sound more formal, "between you and me" is the correct usage.
Remember: If you're ever unsure, try replacing "I" or "me" with "he" or "him." If "he" sounds correct, use "I." If "him" sounds correct, use "me."