<span>These nonessential elements, which can be words, phrases, or clauses, are set off with commas. Rule: Use commas before and after nonessential words, phrases, and clauses, that is, elements embedded in the sentence that interrupt it without changing the essential meaning.</span>
The main idea of this poem "When You Are Old" written by Willian Butler Yeats is about "Love, Loss, and Regret". The guy who is was very in love the woman who keeps rejecting him for many times already even if he's love is pure and unconditional. He said that the woman will regret of not marrying him.
