The grammar tense shifts here and throughout the final couplets. Instead of using “will come,” Teasdale moves into a hypothetical extension of her argument that the world will be able to move on just fine without war. Changes in tense like this strongly affect the reading by allowing the poet to catch her reader off guard or reveal a more powerful revelation.
"And frogs in the pools singing at night,..."See in text(Text of the Poem)
Considering the structure of the poem, with the contrast between what will be and what currently is, we can infer the desire is for a night where the only sounds are those of frogs singing. This suggests that the current night is less idyllic and possibly speaks to the effects war has at all times of day.
Teasdale’s use of “will” speaks to things shall arrive at an unspecified time in the future. Knowing this, we can understand the contrast present in the poem. When Teasdale writes that “There will come soft rains,” we can infer that currently, there are no soft rains. Furthermore, we could read that there are possibly other kinds of rain that are less gentle and calm. Weaponry, such as arrows and bullets, are also things that “rain down” on the world.