In verse one can take any damn constant one likes, one can alliterate, or assone, or rhyme, or quant, or smack, only one MUST leave the other elements irregular.
Ezra PoundAnd the betrayers of language ...... n and the press gang And those who had lied for hire; The perverts, the perverters of language, the perverts, who have set money-lust Before the pleasures of the senses; howling, as of a hen-yard in a printing-house, the clatter of presses, the blowing of dry dust and stray paper, foetor, sweat, the stench of stale oranges.
Ezra Pound