Sonnet 11 his name. An English sonnet is made up of fourteen lines grouped into three quatrains and an ending couplet, with the rhyme scheme "ABAB CDCD EFEF GG". Sonnet 11 exhibits this structure. The sonnet has four feminine endings (accepting the Quarto's contraction of "grow'st" and "bestow'st"). "Convertest" would have been pronounced as a perfect rhyme with the second line's "departest", a holdover from Medieval English. Carl D. Atkins notes "This is a sonnet of contrasts: feminine lines, regular lines; regular iambs, irregular line 10; no midline pauses, multiple midline pauses; waning, growth, beauty, harshness, life and death, beginning and end."
Sonnet 15 that Sonnet 15's closing line "As he [i.e. Time] takes from you, I engraft you new" (15.14) is the "first of several traditional claims for the immortalizing power of verse." This theme of poetic immortality is continued in later sonnets, including sonnet 17's closing couplet "You should live twice: in [your child] and in my rhyme," in sonnet 18's last few lines "Nor shall death brag thou wander'st in his shade / When in eternal lines to time thou grow'st. / So long as men can breathe or eyes can see, / So long lives this, and this gives life