2 Syllables: SU
bidden, bidding, chipping, clicking, clipping, crippling, digging, dipping, dripping, figment, fitting, fixing, flitting, getting, Gibbons, giggling, gripping, Higgins, hitting, kicking, Kipling, knitting, licking, middling, mixing, nibbling, picking, pitting, pricking, quitting, ridding, rigging, ripping, rippling, scribbling, shipping, siblings, sickening, sipping, sitting, skipping, slipping, smiting, spitting, splitting, sticking, stripling, stripping, thickening, ticking, tipping, trickling, tripping, victim, whipping
3 Syllables: USU
admitting, affixing, befitting, committing, conflicting, depicting, emitting, equipping, forbidding, inflicting, omitting, permitting, predicting, remitting, restricting, submitting, transmitting, unwitting
4 Syllables: UUSU
Found 75 words across 3 groupings. Skipped 5 excess words of a similar stem.