2 Syllables: SU
bouncing, bounding, Browning, counselling, counting, crowning, Downing, drowning, founding, foundling, frowning, grounding, lounging, mounting, pounding, rounding, sounding
3 Syllables: USU
accounting, amounting, announcing, astounding, compounding, confounding, denouncing, dismounting, expounding, pronouncing, recounting, renouncing, resounding, surmounting, surrounding
Found 32 words across 2 groupings. Skipped 2 excess words of a similar stem.