Negotiating rhymes with:
renegotiating, renegotiating, renegotiating, renegotiating, appreciating, depreciating, differentiating, emaciating, excruciating, ingratiating, initiating, instantiating, officiating, renegotiating
Negotiating sounds like:
nastiness, nauseating, necessitating, negating, negotiations, nesting, nicotine's, nighttimes, nonacademic