Final answer:
Shakespearean sonnets end with a couplet, which consists of two rhyming lines that deliver a final thought or twist.
Step-by-step explanation:
Shakespearean sonnets typically end with a couplet. These two adjoining lines share an end rhyme and conclude the sonnet with a punchy or poignant statement that often serves to summarize or provide a twist to the poem's theme. An example is found in Sonnet 18, which ends: "So long as men can breathe or eyes can see, / So long lives this, and this gives life to thee."
The structure of a Shakespearean sonnet consists of 14 lines, typically in iambic pentameter, following a rhyme scheme of abab cdcd efef gg. Within this strict form, a poet expresses themes, often about love, showcasing their craft in the English language.