Grammar Checker Online - Free Text Grammar & Spell CheckWhether you have spoken English your whole life or are just beginning to learn the language, the age-old issue of "I vs. Part of the trouble is that English has many words that can mean the same thing. Both are first-person personal pronouns that let you talk about yourself without using your name, which would feel quite awkward in friendly, casual conversation. For example:. In this case, "I" is the subject of the sentence - the person who performed the action of going to the store. This sentence is correct because it uses "I" as the subject.