1 syllable:
bcciv, beeve, biev, bleve, breve, btrieve, cheve, chieve, cleave, cleeve, cleve, deave, driev, eave, eve, gleave, greave, greeve, greve, grieve, heave, keeve, kieve, kleve, leave, leve, lieve, meave, naeve, neave, neve, nieve, peeve, preve, prieve, r-kive, reave, reeve, scheve, seave, sheave, shreeve, shreve, shrieve, sleave, slieve, steeve, steve, stieve, theave, thieve, threave, vive, we've, weave, weive, yves

2 syllables:
abbrev, achieve, aggrieve, air-sleeve, aktiv, aleve, alleve, andreev, aptiv, asweve, aviv, beleave, believe, bereave, beriev, champleve, conceive, congreve, dativ, deceive, disleave, elleve, engrieve, foresleeve, forleave, geneve, hoccleve, hogreeve, ingrieve, inweave, kharkiv, kursiv, landreeve, laneve, massiv, mccleave, naive, occleve, pensieve, perceive, plovdiv, portgreve, portreeve, rajiv, receive, recieve, relieve, remeve, repreve, reprieve, retrieve, reweave, sanjeev, sanjiv, shire-reeve, shirt-sleeve, shirtsleeve, short-sleeve, stativ, unreave, unreeve, unweave, upheave, vancleve, way-leave, wayleave, youlgreave

3 syllables:
ablativ, adjektiv, amevive, apperceive, attraktiv, autoliv, bijektiv, by-your-leave, chernihiv, concrescive, datatrieve, debaltseve, dekorativ, detektiv, disbelieve, effektiv, explosiv, foreconceive, genevieve, gildersleeve, hololive, ibuleve, injektiv, interleave, interweave, isogriv, kollektiv, kondratiev, leitmotiv, lukrativ, maariv, maharive, make-believe, make.believe, makebelieve, mendeleev, misbelieve, misbileve, misconceive, misperceive, misreceive, objektiv, ochakiv, oversleeve, ovintiv, preconceive, prokofiev, rpg-7, satanjeev, semibreve, soloviev, subjektiv, surjektiv, tel-aviv, undeceive, underheave, undershrieve, undersleeve, yestereve, zinoviev

4 syllables:
akkusativ, imperativ, interaktiv, interreceive, kommutativ, nominativ, overachieve, tananarive, ticket-of-leave, treatment-naive, underachieve

5 syllables:
assoziativ, dsm-iv, radioaktiv

6 syllables:
starokostiantyniv