Or search: amine, aminoalkane
3 Syllables: SUU
Byzantine, differently, distantly, guillotine, Philippine, Philistine
4 Syllables: USUU
consistency, consistently, deficiencies, deficiency, efficiencies, efficiency, efficiently, Epiphany, exigencies, exigency, indifferently, insistently, persistency, persistently, proficiency, sufficiency, sufficiently
5 Syllables: UUSUU
aborigines, inconsistency, inefficiency, insufficiency, insufficiently

Found 28 words across 3 groupings. Skipped 2 excess words of a similar stem.