3 Syllables: SUU
desperately, functionally, generally, nationally, preferably, rationally, separately
4 Syllables: SUUU
celibacy, creditably, criminally, definitely, delicacy, delicately, generously, marginally, nominally, perilously, personally, sedulously, treacherously
4 Syllables: USUU
conditionally, confederacy, exceptionally, originally, proportionally, provisionally, traditionally
5 Syllables: USUUU
Additionally, conventionally, degeneracy, diagonally, effeminacy, incredulously, indefinitely, inevitably, inseparably, intelligibly, intentionally, occasionally
5 Syllables: UUSUU
educationally, irrevocably, unconditionally, unintentionally
6 Syllables: UUSUUU
constitutionally, longitudinally

Found 45 words across 6 groupings.