2 syllables:
blowing, boeing, boing, bowing, coing, crowing, drohung, flowing, froing, glowing, going, growing, hoeing, hoing, knowing, koing, lowing, poing, rowing, sewing, showing, slowing, snowing, sowing, strowing, throwing, toeing, toing, towing, trowing, yoing

3 syllables:
agoing, all-knowing, anschauung, backflowing, bestowing, childcrowing, churchgoing, cock-crowing, cockcrowing, cold-shoeing, dadoing, demoing, elbowing, escrowing, fallowing, farrowing, fast-growing, filmgoing, flat-growing, foregoing, foreshowing, forgoing, forthgoing, free-flowing, get going, glass-blowing, glassblowing, homegoing, in-going, inflowing, ingoing, ingrowing, intoeing, keep going, low-growing, mind-blowing, on-going, ongoing, outflowing, outgoing, outgrowing, plateauing, playgoing, pogoing, reflowing, regrowing, seagoing, self-knowing, siloing, slowgoing, soloing, tall-growing, tangoing, tiptoeing, unknowing, way-going, waygoing, windrowing, winegrowing, winnowing

4 syllables:
aforegoing, away-going, buffaloing, cameoing, concertgoing, easy-going, easygoing, easy going, embargoing, folioing, foreknowing, furbelowing, moviegoing, nonchurchgoing, oceangoing, overblowing, overflowing, overgoing, overknowing, overthrowing, radioing, rodeoing, steady-going, thoroughgoing, torpedoing, undergoing, weltanschauung, whistle-blowing, whistleblowing, woolward-going

5 syllables:
manifestoing, ocean-going, theatergoing