1 syllable:
beef, brief, briefe, chief, creaf, crieff, fhfif, fief, graef, graefe, graeff, grefe, greif, greiff, grief, keef, keefe, keeffe, kieff, kleef, knief, leaf, leif, lief, naef, neef, neife, preef, prief, reef, reif, reife, reiff, rief, schief, seif, seife, sheaf, steif, stief, streif, theef, theif, thief, tiefe, treif

2 syllables:
agrief, bagreef, bay leaf, belief, bloodleaf, broadleaf, canif, capsheaf, captif, cherif, chief keef, corn beef, covfefe, deadbeef, debrief, drop-leaf, fig-leaf, figleaf, fig leaf, five-leaf, flyleaf, giltif, gold-leaf, goldleaf, gold leaf, greenleaf, ground beef, grub-thief, hafif, heart-leaf, heartgrief, heartleaf, hochtief, in brief, khalif, khalife, kharif, laceleaf, latif, lesstif, lobed leaf, longleaf, loose-leaf, looseleaf, massif, matif, mccleaf, metif, mizkif, moncrieff, motif, mschif, mudhif, natif, o'keefe, o'keeffe, oakleaf, okeefe, okeeffe, paint leaf, pc-fx, pfandbriefe, qatif, relief, repriefe, roastbeef, roast beef, saif, salif, sarif, scale leaf, seed leaf, serif, seriph, setif, shareef, sharif, shereef, shinleaf, sneak thief, strip-leaf, surif, sweetleaf, tallchief, tea-leaf, tealeaf, tea leaf, thorleif, twinleaf, unreif, vancleef, what/if, wheatsheaf, whyteleafe, woodlief, zangief

3 syllables:
additif, adoptif, apritif, arab chief, auto-de-fe, bas-relief, basrelief, bass-relief, bible leaf, bully beef, cattle thief, cemagref, cloverleaf, compound leaf, copperleaf, coral reef, curaleaf, cut of beef, digestif, disbelief, false belief, fire chief, flannel leaf, floral leaf, fugitif, half-relief, half relief, high relief, honest thief, infangthief, interleaf, jellyleaf, laxatif, leatherleaf, legal brief, leitmotif, leontief, liverleaf, low relief, lucratif, maharif, make-belief, maple-leaf, miles o'keeffe, misbelief, nanoleaf, nissan leaf, nonbelief, oblong leaf, obtuse leaf, out-relief, ovate leaf, overleaf, painted leaf, parted leaf, pittencrieff, police chief, positif, primitif, relatif, rerefief, ryan leaf, sans-serif, sanserif, satinleaf, satin leaf, self-belief, semibrief, semivif, serrate leaf, side of beef, simple leaf, single-leaf, strong belief, thymeleaf, tribal chief, unbelief, underleaf, velvet-leaf, velvetleaf, walking leaf, waterleaf

4 syllables:
accusatif, affirmatif, alternatif, aperitif, balancereef, barrier reef, caritatif, demirelief, diminutif, dispositif, elongate leaf, entire leaf, five stages of grief, georgia o'keeffe, indian chief, indicatif, japanese leaf, linear leaf, microrelief, mutessarif, photorelief, pom klementieff, recitatif, sagittate-leaf, w.e.f

5 syllables:
asd rna motif, commander in chief, jodi lyn o'keefe, lanceolate leaf, mazar-i-sharif, psychotic belief, religious belief

6 syllables:
erroneous belief, fiona dourif