Answer: The mast looks like it imprisons the moon, like the British imprison the colonists.
In this passage, the "phantom ship" is described. The text states that the mast and spar of the ship look as if they were imprisoning the moon. Therefore, the author compares this to a "prison-bar." It is possible that this is a reference to the way the British imprison the colonists.
Answer:
You can add <em><u>"Cuz' I'm what I'm"</u></em> in the end.
Overall, the poem is good as it is.
His claim was If he couldn’t have freedom then he would rather be dead
He stated many times in his speech about how he wanted fight for freedom and he wanted others to join him in the battle between the British and the 13 colonies
Hope this helps