Sonnet 113 his outer vision false. Sonnet 113 is an English or Shakespearean sonnet. The English sonnet has three quatrains, followed by a final rhyming couplet. It follows the typical rhyme scheme of the form "abab cdcd efef gg" and is composed in iambic pentameter, a type of poetic metre based on five pairs of metrically weak/strong syllabic positions. The 11th line exemplifies a regular iambic pentameter: Indeed, all fourteen lines may be scanned regularly, excepting the final extrametrical syllables or "feminine endings" in lines 10 and 12: The meter demands a few variant pronunciations: Line 4's "effectually" functions as four syllables,
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