4 Syllables: SUUU
decorating, dominating, generating, liberating, moderating, nominating, operating, oscillating, propagating, separating, tolerating
5 Syllables: USUUU
accelerating, accommodating, ameliorating, collaborating, commemorating, consolidating, degenerating, deliberating, deteriorating, elaborating, enumerating, evaporating, exaggerating, exasperating, exhilarating, inaugurating, incorporating, invigorating, obliterating, predominating, regenerating, reiterating
Found 33 words across 2 groupings.