Question: what is the difference between i and i'm?
Answer: “i” or more accurately “I” (it is always upper-case) is the first person subjective pronoun. “i'm” (again it should be uppercase) is a shortening of “I am”, first person singular subjective pronoun and first person singular of the verb “to be”. ... I is a single person phrase on its own. I'm is a contraction of “I am”.