Why does Shakespeare often write in iambic pentameter?

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Shakespeare often wrote in iambic pentameter because it closely resembles the natural rhythms of English speech and is considered pleasing to the ear. The regular pattern of stressed and unstressed syllables in iambic pentameter helps to create a sense of harmony and balance in his poetry and plays. Additionally, the use of iambic pentameter allowed Shakespeare to showcase his mastery of language and poetic skill, while also allowing for greater flexibility and variation in his writing.