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."
Poetry calligraphy. These basic units of poetic form are often combined into larger structures, called "poetic forms" or poetic modes (see following section), as in the sonnet or haiku. Poetry is often separated into lines on a page. These lines may be based on the number of metrical feet, or may emphasize a rhyming pattern at the ends of lines. Lines may serve other functions, particularly where the poem is not written in a formal metrical pattern. Lines can separate, compare or contrast thoughts expressed in different units, or can highlight a change in tone. See the article on line breaks