Decasyllabic quatrain Decasyllabic quatrain Decasyllabic quatrain is a term used for a poetic form in which each stanza consists of four lines of ten syllables each, usually with a rhyme scheme of AABB or ABAB. Examples of the decasyllabic quatrain in heroic couplets appear in some of the earliest texts in the English language, as Geoffrey Chaucer created the heroic couplet and used it in "The Canterbury Tales". The alternating form came to prominence in late 16th-Century English poetry and became fashionable in the 17th Century when it appeared in heroic poems by William Davenant and John Dryden. In the 18th Century
Poetry used at the close of each subsequent stanza until the final quatrain, which is concluded by the two refrains. The remaining lines of the poem have an a-b alternating rhyme. The villanelle has been used regularly in the English language since the late 19th century by such poets as Dylan Thomas, W.H. Auden, and Elizabeth Bishop. A limerick is a poem that consists of five lines and is often humorous. Rhythm is very important in limericks for the first, second and fifth lines must have seven to ten syllables. However, the third and fourth lines only need five to seven.