2 Syllables: SU
Bengal, central, dental, emerald, Engels, entrails, general, gentle, Kemble, Kendall, kennel, menstrual, mental, pencil, phenol, rental, Reynolds, temple, tensile, tremble, vengeful, ventral, Wendell
3 Syllables: SUU
3 Syllables: USU
assemble, biennial, Centennial, credentials, dissemble, essential, eventful, parental, perennial, potential, prudential, reassembled, resemble, resentful, revengeful, sequential, tangential, triennial, utensils
4 Syllables: SUUU
4 Syllables: USUU
4 Syllables: UUSU
accidental, confidential, consequential, continental, deferential, departmental, detrimental, differential, elemental, existential, exponential, fundamental, incidental, incremental, influential, instrumental, monumental, Occidental, Oriental, ornamental, penitential, pestilential, preferential, presidential, providential, regimental, residential, reverential, sentimental, supplemental, temperamental, transcendental, uneventful
5 Syllables: UUUSU
6 Syllables: UUUUSU
Found 85 words across 8 groupings. Skipped 16 excess words of a similar stem.