Rhymed pairs of iambic pentameter lines form the heroic couplet. Couplets in iambic pentameter are called "heroic couplets". The poem consists of four quatrains in abab iambic pentameter. The poem is written in 28 rhyming couplets of iambic pentameter. A line of iambic pentameter comprises five consecutive iambs. An elegiac couplet is a dactylic hexameter followed by a dactylic pentameter. Shakespeare's standard poetic form was blank verse, composed in iambic pentameter. "Endymion" is written in rhyming couplets in iambic pentameter (also known as heroic couplets). The rhyme royal stanza consists of seven lines, usually in iambic pentameter. The Ode is written in iambic pentameter. Lines of unrhymed iambic pentameter are commonly known as blank verse. Iambic pentameter became the prevalent meter in English. The meter of each line is iambic pentameter. Each couplet consists of a hexameter verse followed by a pentameter verse. Dunbar, in particular, wrote poems in true iambic pentameter.