Source: Berryman, John. “The Ball Poem.” Collected Poems: 1937 – 1971. Ed. Charles Thornbury. New York: Farrar, Straus and Giroux, 1991. Google Books. Web. 06 June 2011.
What is the structure of this poem? free verse
blank verse
sonnet
ballad
Free Verse, is the correct answer to this question. Because, looking at the selection you included you can tell by looking at the details. Hope this helps.