bbbb bbfn bftt bftz bnor bnrr bntm bobb bobo boff bomb bomt bonn bono bont boob boof boom boon boor boot booz bor- borf borm born boro borr bort borz botb botn boto bott bozo brfm brno brob brom bron broo bror brot broz brrm brrr btob btor btrt bttb bzzt bzzz fbom ffff ffrr fftf fmno fntb fobt fofo fomo fomt fono font fonz foof foom foon foot for- forb form forn foro forr fort fotm foto fott frmn frob from fron frot frzb fzzt mfbm mfor mftf mfzb mmff mmmm mmor mmrf mnbb mntb mntn mobb mobo moff mofo momo mon- monn mono mont moob moon moor moot morb morf morn moro mort motb motm moto mott motz mozo mrbb mrbm mron mroz mrtm mrtn mrtt mtbo mtff mtnt mtom mtor mtrr mttr nbbo nfff nfon nfto nmff nmnt nmon nmtb nnmt nnnn nnot nntn nobm nobo nom- nomo non- nonn nono nont noo- noob noon nooo noor noot nor- norb norf norm norn noro norr nort not- noto nott nron ntof ntoz nttm ntto nttr nzmt nzrb obbo obon obor obot obro off- offo offr ofno ofor ofoz ombo omn- omo- omon omoo omor omro onno onon onor onoz ont- onto onzo ooff oont oooo oort ootb orbb orbo orff ormn ormo orno oro- orof orom oron oror orot oroz orro orto orzo oto- otof oton otoo otor otro otto ozon rbbb rbbr rmon rnbr rnnt rnot rob- robb robo robt roff rofo romb romm romo rono ront roob roof room roon roor root rooz roro rort rotn roto rotr rott rozz rrrr rtbf rtfb rtfm t-mo tbnf tbrb tfot tmbr tmnt tmro tmtt tobo tobt toff tofo toft tomb tomm tomo tomt tonb tonn tono toof toom toon toor toot torf torm torn toro torr tort totm toto totr tott tozo trfm trfr trmb trno trom tron troo trot trtr ttbb ttff ttfn tton tttt tzzt z-ro zobo zoff zomb zomo zon- zoo- zoom zoon zoot zorb zorn zoro zort zott zotz zozo zzzz