Poetry is an art form and in contrast to blank verse, rhymed poems rhyme by definition, Couplet-based poetry contains pairs of rhyming lines. If you’ve ever read Shakespeare or Dr. Seuss, you are familiar with the couplet – two lines of verse that follow one another and are connected by rhythm and rhyme. They make a poem sing with their lyrical language and pacing, see blow from D. Seuss:
Quatrain-based poetry contains four-line groupings where alternate lines typically alternate, see a part of Thomas Gray’s Elegy Written in a Country Churchyard
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