Many notable poets often lived in the New England states.

In the above sentence is New England an adjective? Im sure that many and notable are but I am unsure if New England is. Also i need to know the subject modifiers which i think are many and notable which I think modifys poets?????

Yes, New England is a proper adjective modifying states. Your other two adjectives are also right. They both modify the subject, poets.

thank you :}

You're welcome. :-)

In the sentence you provided, "New England" is not acting as an adjective. It is actually functioning as a proper noun, specifically a place name that refers to a geographical region in the northeastern United States.

Regarding the subject modifiers, you are correct. "Many" and "notable" are both adjectives that modify the noun "poets." They provide additional information about the quantity and quality of the poets being mentioned.