Farewell to barn and Stack and Tree – A.E Housman (Stanza Six)

What is the technique used by the poet to make the stanza unpredictable?

Which number is used as an ominous symbol?

The speaker inverts the syntax of the sentences uttered. What is the name of that technique?

Why does the speaker not speak of human beings who might be possibly waiting or him?

What is significant of the sounds used by the poet in the final stanza?

What figurative idea is suggested by the changed word order of the lines?