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, meave, naeve, neave, neve, nieve, peeve, preve, prieve, r-kive, reave, reeve, scheve, seave, sheave, shreeve, shreve, shrieve, sleave, sleeve, slieve, steeve, steve, stieve, theave, thieve, threave, vive, we've, weave, weive, yves

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

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

4 syllables:
akkusativ, alice eve, all about eve, diablo iv, fc dynamo kyiv, imperativ, interaktiv, interreceive, kommutativ, midsummer eve, mourad aliev, nominativ, on the qui vive, overachieve, taffeta weave, tananarive, terminal leave, ticket-of-leave, treatment-naive, underachieve

5 syllables:
absence without leave, assoziativ, compassionate leave, dsm-iv, jessica yaniv, radioaktiv, rafael fiziev, sabbatical leave, sergei prokofiev

6 syllables:
starokostiantyniv

9 syllables:
europa universalis iv