2 Syllables: SU
adding, angling, asking, aspirin, babbling, backing, baffling, banging, banking, banning, basking, battling, blasting, bragging, branching, branding, camping, cancelling, Canning, casting, catching, Channing, chanting, chatting, clanging, clanking, clapping, clashing, clasping, cracking, crackling, cramming, crashing, damning, damping, dancing, dangling, dashing, dragging, fanning, fastening, fasting, flagging, flanking, flapping, flashing, Franklin, gambling, gasping, glancing, grabbing, granting, grappling, grasping, hacking, handing, handling, hanging, hatching, having, javelin, lacking, lagging, landing, Lansing, lapping, lashing, lasting, laughing, Manning, mapping, masking, massing, matching, matting, nagging, packing, padding, paddling, panting, passing, patching, patting, planning, planting, prancing, racking, rambling, ranking, rapine, rasping, rattling, sacking, sagging, sampling, sanguine, sapling, scanning, scrambling, scratching, slamming, slanting, slapping, slashing, smashing, snapping, snatching, spanning, splashing, stabbing, staffing, stamping, standing, straggling, strangling, strapping, tacking, tackling, tanning, tapping, thanking, thrashing, tracking, tramping, trampling, trapping, traveling, travelling, wagging, wrangling, wrapping
3 Syllables: USU
advancing, amassing, attaching, attacking, combating, commanding, contrasting, demanding, despatching, detaching, dismantling, dispatching, encampment, enchanting, enhancing, entangling, entrancing, examine, expanding, financing, harassing, outstanding, supplanting, surpassing, transplanting, unchallenged, unflagging, unravelling, withstanding
4 Syllables: UUSU
5 Syllables: UUUSU
Found 164 words across 4 groupings. Skipped 9 excess words of a similar stem.