Or search: bode, omen, augur, inform, bespeak, portend, predict, presage, betoken, forecast, foretell, register, auspicate, prefigure, foreshadow
4 Syllables: SUUU
advocating, allocating, complicating, deprecating, educating, extricating, imitating, inculcating, insulating, integrating, intimating, lubricating, simulating, stimulating, suffocating, vindicating
5 Syllables: USUUU
communicating, disintegrating, eradicating, reciprocating

Found 20 words across 2 groupings.