Whenever rhymes with:
never, bever, clever, devore, endeavor, endeavour, ever, forever, grever, haver, however, kever, klever, kochevar, lever, mcever, morever, never, sever, trevor, whatever, whatsoever, wherever, whichever, whoever, whomever, whomsoever, whosoever
Whenever sounds like:
whimper, whomever, winberry, winfree, winfrey