Negates rhymes with:
conjugates, delegates', gates, gates', abates, annotates, ates, awaits, aytes, baits, bates, bates', cates, coates, conflates, conjugates, crates, creates, date's, dates, debate's, debates, delegates', demodulates, desecrates, dictates, eight's, eights, elates, equates, estate's, estates, fates, frates, gates, gates', grates, great's, greats, hates, inflates, interstate's, kate's, kates, kuwait's, lecates, mates, misstates, narrates, overrates, pates, plaits, plates, postdates, predates, procreates, rate's, rates, relates, restates, sates, scates, sedates, skates, slates, spates, speights, state's, states, states', straights, straits, tate's, traits, translates, updates, waite's, waites, waits, weights, yates, yeats, zaitz
Negates sounds like:
nacogdoches, nasdaq, nasdaq's, nast's, nastasi, naugatuck, necessitates, necessities, neckties, negotiates, nest-egg, nests, newscasts, newsday's, next's, niceties, night's, nighthawk, nighthawks, nights, nights', nonjets, nonstick, nugget's, nuggets