Why would a poet use past perfect verbs?

Comparison/ contrast literary analysis outline for great gatsby thesis statment: main idea for 1st body paragraph (choose a literary element used in both texts.) literary element use and effect in novel specific example specific example literary element use and effect in 2nd piece of literature specific example specific example relation of this literary element to the theme details from primary/ secondary source details from primary/ secondary source main idea for 2nd body paragraph (choose a literary element used in both texts.) literary element use and effect in novel specific example specific example literary element use and effect in 2nd piece of literature specific example specific example relation of this literary element to the theme details from primary/ secondary source details from primary/ secondary source main idea for 3rd body paragraph (choose a literary element used in both texts.) literary element use and effect in novel specific example specific example literary element use and effect in 2nd piece of literature specific example specific example relation of this literary element to the theme details from primary/ secondary source details from primary/ secondary source