2 syllables:
ating, baiting, bating, crating, dating, eighting, fating, flating, freighting, gaiting, gating, grating, hating, mating, paiting, plaiting, plating, prating, rating, sating, skating, slating, stating, straighting, tating, waiting, weighting

3 syllables:
a-weighting, abating, ablating, awaiting, backdating, bear-baiting, bearbaiting, belating, berating, bond rating, bromating, bull-baiting, bullbaiting, call waiting, castrating, checkmating, chelating, chromating, collating, conflating, creating, cross-dating, curating, debating, deflating, delating, derating, dictating, dilating, disrating, donating, elating, equating, fellating, filtrating, fixating, forfaiting, frustrating, furcating, gemmating, gestating, gold-plating, gyrating, hydrating, ice-skating, iceskating, ice skating, implating, inflating, instating, jew-baiting, librating, ligating, liquating, locating, lustrating, luxating, mandating, migrating, misdating, misstating, narrating, negating, nitrating, notating, novating, orating, outdating, palpating, phonating, placating, postdating, predating, probating, pronating, prorating, prostrating, pulsating, pupating, quadrating, queerbaiting, rat-baiting, rebating, red-baiting, redbaiting, reflating, regrating, relating, remating, restating, rotating, sedating, sensating, serrating, shell plating, speedskating, stagnating, stalemating, striating, sulfating, summating, surbating, tailgating, tin-plating, titrating, translating, truncating, updating, uprating

4 syllables:
abdicating, abnegating, abrogating, acclimating, acerbating, activating, actuating, adaptating, adulating, adumbrating, advocating, aestivating, aggravating, aggregating, agitating, allocating, altercating, alternating, ambulating, amputating, angulating, animating, annotating, antedating, antiquating, approbating, arbitrating, armor plating, arrogating, asperating, aspirating, auscultating, auspicating, automating, aviating, badger-baiting, bifurcating, bloviating, bombinating, brachiating, brominating, cachinnating, calculating, calibrating, candidating, cannulating, cantillating, captivating, carbonating, carbon dating, caseating, castigating, catenating, celebrating, cerebrating, chlorinating, circulating, coacervating, cogitating, cohobating, colligating, collimating, collocating, commentating, commutating, compensating, complicating, concentrating, condensating, confiscating, conglobating, congregating, conjugating, consecrating, constellating, consternating, constipating, constuprating, consummating, contemplating, convocating, copulating, corrugating, coruscating, crenelating, crepitating, criminating, culminating, cultivating, cumulating, cursitating, deaminating, decimating, decollating, decorating, dedicating, defalcating, defecating, deflagrating, delegating, delibrating, demarcating, demonstrating, denervating, denigrating, denudating, dephlegmating, depilating, deprecating, depredating, depurating, derogating, desecrating, designating, desolating, despumating, desquamating, detonating, detruncating, devastating, deviating, dijucating, dissertating, dissipating, divagating, dominating, duplicating, educating, educating..., elevating, emanating, embrocating, emigrating, emulating, enervating, epilating, erogating, escalating, escheating, estimating, estivating, estuating, excavating, execrating, expiating, explicating, expurgating, extirpating, extricating, fabricating, fascinating, fecundating, federating, fibrillating, figure-skating, figure skating, filiating, fimbriating, flagellating, flocculating, fluctuating, fluoridating, fluorinating, foliating, formulating, fornicating, fractionating, fulgurating, fulminating, fumigating, fustigating, geminating, generating, germinating, glomerating, graduating, granulating, gratulating, gravitating, guesstimating, hebetating, herniating, hesitating, hibernating, human-baiting, hyphenating, illustrating, imbricating, imitating, immigrating, immolating, impanating, impetrating, implicating, imprecating, impregnating, incarnating, incrassating, increating, incubating, inculcating, incurvating, indicating, indurating, infiltrating, infumating, innervating, innodating, innovating, insolating, instaurating, instigating, insufflating, insulating, integrating, intensating, intimating, intonating, intubating, inundating, inviscating, invocating, iodating, irrigating, irritating, irrorating, isolating, iterating, jaculating, jubilating, jugulating, lacerating, laminating, lariating, legislating, levigating, levitating, liberating, lion-baiting, liquidating, litigating, lord-in-waiting, loricating, lubricating, lucubrating, macerating, machinating, maculating, malleating, manducating, marginating, marinating, masterbating, masticating, masturbating, maturating, mediating, medicating, meditating, meliorating, menstruating, metal plating, metricating, micturating, militating, miniating, miscreating, mistranslating, mitigating, moderating, motivating, mutilating, nauseating, navigating, nictitating, nidulating, nominating, nucleating, numerating, obfuscating, objurgating, obligating, obsecrating, obturating, obviating, octane rating, odorating, onerating, operating, opiating, oppilating, orchestrating, oscillating, osculating, overrating, overstating, overweighting, ovulating, oxalating, oxidating, paginating, passivating, peculating, penetrating, percolating, perforating, permeating, permutating, perorating, perpetrating, personating, pixelating, pollinating, populating, postulating, predicating, procreating, promulgating, propagating, pullulating, pumicating, pustulating, radiating, radicating, re-creating, recreating, regulating, reinstating, relegating, remonstrating, renovating, replicating, resinating, resonating, retranslating, ricochetting, roller-skating, rollerskating, roller skating, rubricating, ruminating, rusticating, salivating, satiating, saturating, scintillating, segregating, self-creating, seminating, separating, sequestrating, sibilating, silver-plating, simulating, situating, speciating, speculating, spoliating, sporulating, stimulating, stipulating, strangulating, stridulating, subjugating, sublimating, subrogating, suffocating, suffragating, sulfonating, sulphurating, supinating, supplicating, suppurating, surrogating, suscitating, syncopating, syndicating, tabulating, tenuating, terebrating, terminating, tessellating, titillating, titivating, tittivating, tolerating, transcolating, translocating, transmigrating, triplicating, triturating, ulcerating, ultimating, ululating, underrating, understating, underweighting, undulating, urinating, urticating, vacillating, validating, valuating, vegetating, vellicating, venerating, ventilating, verbenating, vesicating, viscerating, vitiating, zero-rating

5 syllables:
abbreviating, abominating, absquatulating, accelerating, accentuating, accommodating, acculturating, accumulating, acidulating, acuminating, administrating, adulterating, affiliating, agglomerating, agglutinating, alienating, alleviating, alliterating, amalgamating, ameliorating, ammoniating, annihilating, annunciating, anticipating, apocopating, appreciating, appropriating, approximating, arsenicating, articulating, asphyxiating, assassinating, asseverating, assimilating, associating, attenuating, authenticating, bituminating, calumniating, capacitating, centuplicating, circumvallating, co-operating, co-ordinating, coagulating, cohabitating, collaborating, commemorating, commensurating, commiserating, communicating, compassionating, concatenating, conciliating, confabulating, confederating, conglomerating, conglutinating, congratulating, consociating, consolidating, contaminating, contra-rotating, contraindicating, cooperating, coordinating, corroborating, cross-pollinating, de-escalating, de-iodinating, deactivating, debilitating, decaffeinating, decapitating, decelerating, decorticating, decrepitating, defenestrating, defibrillating, defoliating, degenerating, deliberating, delimitating, delineating, demodulating, demotivating, demyelinating, denominating, depopulating, depreciating, deracinating, deregulating, desegregating, desiderating, desulphurating, detoxicating, devaluating, diffraction grating, dilacerating, dilapidating, dimidiating, disaggregating, disanimating, discriminating, discruciating, disintegrating, disseminating, dissimilating, dissimulating, dissociating, domesticating, edulcorating, effectuating, effeminating, ejaculating, elaborating, electroplating, eliminating, elucidating, elutriating, emaciating, emancipating, emasculating, emolliating, encapsulating, enucleating, enumerating, enunciating, episcopating, equilibrating, equivocating, eradiating, eradicating, essentiating, evacuating, evaginating, evaluating, evaporating, eventuating, eviscerating, exacerbating, exaggerating, exasperating, excogitating, excoriating, excruciating, exenterating, exfoliating, exhilarating, exilarating, exonerating, expariating, expatiating, expatriating, expostulating, expropriating, exsanguinating, extenuating, exterminating, extrapolating, extravagating, extravasating, exuberating, exungulating, exuviating, facilitating, felicitating, gelatinating, geniculating, gesticulating, habilitating, habituating, halogenating, homologating, horripilating, humiliating, hydrogenating, hypothecating, illuminating, impersonating, impropriating, improvisating, inactivating, inaugurating, incarcerating, incardinating, incinerating, incommodating, incorporating, incriminating, indoctrinating, inebriating, infatuating, infibulating, infuriating, ingeminating, ingenerating, ingratiating, ingurgitating, initiating, innoculating, inoculating, inseminating, instantiating, intenerating, intercalating, interpellating, interpolating, interrelating, interrogating, intimidating, intolerating, intoxicating, inturbidating, invaginating, invalidating, investigating, invigilating, invigorating, inviscerating, iodinating, irradiating, itinerating, ladies-in-waiting, lady-in-waiting, legitimating, lixiviating, luxuriating, manipulating, misallocating, miscalculating, miseducating, misestimating, moon-culminating, necessitating, negotiating, nidificating, non-operating, nonirritating, nonoperating, nonterminating, obliterating, officiating, originating, overhydrating, oxygenating, participating, perambulating, peregrinating, perpetuating, pontificating, potentiating, precipitating, predestinating, predominating, prefabricating, premeditating, preponderating, procrastinating, prognosticating, proliferating, propitiating, proportionating, quadruplicating, re-educating, reactivating, ready and waiting, reallocating, reanimating, recalculating, reciprocating, recriminating, recuperating, redecorating, rededicating, reduplicating, reformulating, refrigerating, regenerating, regurgitating, reincarnating, reintegrating, reiterating, rejuvenating, remunerating, renominating, repatriating, repopulating, repudiating, resuscitating, retaliating, reticulating, revalidating, revegetating, revendicating, reverberating, self-abnegating, self-activating, self-deprecating, self-generating, self-liquidating, self-operating, self-pollinating, self-propagating, self-regulating, self-replicating, somnambulating, sophisticating, subalternating, subordinating, substantiating, syllabicating, tergiversating, transliterating, triangulating, uncalculating, undeviating, unfluctuating, unhesitating, unstimulating, vaticinating, vermiculating, vesiculating, vituperating

6 syllables:
circumambulating, circumnavigating, circumstantiating, decontaminating, dehydrogenating, deoxygenating, deteriorating, differentiating, disaffiliating, disambiguating, disarticulating, disassociating, disincorporating, disorientating, domiciliating, excommunicating, free-associating, hyperventilating, illegitimating, incapacitating, incommunicating, indiscriminating, individuating, intermediating, interpenetrating, military rating, misappropriating, nonparticipating, nonreciprocating, overcompensating, overestimating, ratiocinating, recapitulating, reevaluating, rehabilitating, reincorporating, reinvigorating, renegotiating, self-depreciating, self-incriminating, self-opininating, self-perpetuating, superannuating, supererogating, supersaturating, transubstantiating, unaccommodating, uncontaminating, underestimating, undiscriminating, unilluminating

7 syllables:
disintermediating, forisfamiliating, intercommunicating

5 syllables:
hallucinating