sentences:  Although known as "Sonnet 126", this poem is not formally a sonnet in the strict sense, and is one of only two poems in the series (the other being Sonnet 99) which does not conform to Shakespeare's typical rhyme scheme.Instead of 14 lines rhyming "abab cdcd efef gg", the poem is composed of six couplets ("aa bb cc dd ee ff").Like the other sonnets (except Sonnet 145) it is composed in iambic pentameter, a type of poetic metre based on five pairs of metrically weak/strong syllabic positions.