Answer:
Each stanza begins with a question and ends with an answer and explanation.
Step-by-step explanation:
The speaker of this poem is a woman who is dead and buried, and feels that someone is digging on her grave. At the beginning of the stanza, the woman asks who the person digging is (her former lover? her relative? her enemy?) and towards the end of the stanza, an answer is offered, along with an explanation. We learn that the lover married another woman, and no longer thinks of her. The family believe tending the grave to be pointless, and therefore, have forsaken it. Finally, the enemy believes that now that death has arrived, hate is pointless, and has stopped caring about her. Therefore, none of these characters are the ones digging on her grave.