Tips about grammar
A noun phrase is where a noun is put into a sentence to create a scene using a character or a noun, which is then joined by a verb phrase to create a sentence EX: Bob is working on a project.
A verb is where a verb is put into a sentence to create a verb phrase and to add an action that the character is doing, and when combined with a noun phrase it creates a sentence. EX: John is running around the track.
Articles in the English language
Articles are words that further defines nouns EX: A, An, The
Why is "I" a pronoun?
I, is a pronoun because if someone didn't use I as a pronoun then they would be talking in third person or talking in a sentence and using their name instead of using "I". Another reason that I, is a pronoun is because if someone were to use me as in "My friend and me" that would be grammatically incorrect seeing as the real correct say is "My friend and I
How would you differentiate between a linking verb and an action verb?
You can differentiate between a linking verb and an action verb by not using am, is, are was, were, being, been and instead replacing it with an action verb.