(1st paragraph) "[Now I know that] Spring will come again, / Perhaps tomorrow: ..."

(2nd paragraph) the sun impresses "...a tenderness, ALMOST warmth, where the hail dripped, / As if the mighty sun wept tears of joy. / But 'twas TOO LATE for warmth. [caesura] ..."

(3rd paragraph) "They had but an hour to sing. On boughs they sang, / on gate, on ground; ..."

(final section of 3rd paragraph, after "they could do no wrong" a lot of sibilance: "something" "sang" "stars" "silence [rhymed with "silence" again]" "stained" "saying" "Spring" "perhaps" (but not "tomorrow.")