Final answer:
The use of free verse in 'Storms Ending' allows the speaker to express their pain and personal experience authentically without the constraints of a structured rhyme scheme or meter.
Step-by-step explanation:
The use of free verse in the poem 'Storms Ending' contributes to the theme of the poem by allowing the speaker to express their pain and personal experience without the constraints of a structured rhyme scheme or meter. The lack of a set form gives the speaker the freedom to tell their story authentically and evokes a sense of unpredictability. In free verse, readers focus on other elements such as punctuation and word choice to understand the speaker's emotions and message.