-er eee eef een eeo eep eer eex ef- efe eff efi efo efp efr efx eie eif eii ein eio eip eir eix en- ene enf eni enn eno enp enr eo- eoe eof eoi eon eoo eop eor ep- epe epf epi epn epo epp epr epx ere erf eri ern ero erp err ex- exe exi exo exp exr exx fee fef fei fen feo fep fer fex ffe fff ffi ffn ffo ffp ffr ffx fie fif fii fin fip fir fix fne fnf fni fnn fnp fnr fnx foe fof foi fon foo fop for fox fpe fpi fpn fpo fpp fpr fpx fre frf fri frn fro frp frr fxe fxi fxp fxr fxx i-f ie- iee ief iei ien iep ier iex ife iff ifi ifn ifo ifp ifr ifx iie iif iii iin iio iip iir iix in- ine inf ini inn ino inp inr inx io- ioe iof ioi ion ioo iop ior ipe ipf ipi ipn ipo ipp ipr ipx ir- ire irf iri irn iro irp irr irx ixe ixi ixn n-i ne- nee nef nei nen neo nep ner nex nfe nff nfi nfn nfo nfp nfr nie nif nii nin nio nip nir nix nne nnf nni nnn nno nnp no- noe nof noi non noo nop nor nox npe npf npi npn npo npp npr nre nrf nri nrn nro nrp nrr nrx o-i oee oef oei oen oeo oep oer oex of- ofe off ofi ofn ofo ofp ofr ofx oie oif oii oin oio oip oir on- one onf oni onn ono onp onr onx oo- oof ooi oon ooo oop oor oox op- ope opf opi opn opo opp opr opx or- ore orf ori orn oro orp orr orx ox- oxf oxi oxn oxo oxx p-p pee pef pei pen peo pep per pex pfe pff pfi pfn pfo pfp pfr pfx pie pif pii pin pio pip pir pix pn- pne pnf pni pnn pno pnp pnr pnx poe pof poi pon poo pop por pox ppe ppf ppi ppn ppo ppp ppr ppx pre prf pri prn pro prp prr prx pxe pxr re- ree ref rei ren reo rep rer rex rfe rff rfi rfn rfo rfp rfr rie rif rii rin rio rip rir rix rni rnn rno rnp rnr roe rof roi ron roo rop ror rox rpe rpf rpi rpn rpo rpp rpr rpx rrf rri rrn rrp rrr rxp rxr xee xen xep xer xex xfe xfn xfx xie xii xin xio xix xno xof xoi xon xoo xop xor xox xpe xpf xpn xpo xpp xrf xrx xxi xxo xxp xxx

-ene -ine -one eeee eefe eefn eero efen efeo effi efon efor eiei eien eier eine eini eino eion eipo eipr eire eirn enee eneo ener enfp enif enin enio enix enne enni eno- enoe enon enp- enpi enri eoin eoir eone eore eori epee epen eper epi- epie epin epip epix epon epor epox eppo eppp epro eprp epxp er-x erei eren erer erfx erie erin erio erne erni erno eroe eroi eron eroo erpe erre erro exen exer exfo exif exin exo- exon exor expn expo expr exrx feen feer fefe feff fefi fefo feie fein feio feir fene feni fenn feof feon fere fern fero ferr ffee ffff ffii ffrr fief fien fier fife fiff fifi fifo fiii fine fini finn fino finp fioe fion fior fipp fire firn fixe fixx foer fofo foie foin foix fone fono foof foon fopp for- fore fori forn foro forr foxe foxx fpin fprf free frei fren freo frep frex frie frin frio frip froe fron frop i-no ieie ieio iere ieri ifen ifer ifex ifni ifno ifnr ifor ifpo ifrf ifri iiie iiii iiio iino iioi iioo iiop iipf inee inex infi info infp inne inni inno innr ino- inoi inon inor inox inp- inpe inpi inpp inre inri inro ioee ioii ioio ione ioni ionn iono ioof iooi iooo iore iori ipen iper ipex ipie ipin ipix ipoe ipop ippf ippo ippr ipri ipxe iree iren irer irex irfe iri- irie irin irio irip irix irne iron irop irpe irre irri ixxi n-ii neef neei neen neep neer nefe neff nefi neif nein neip neir nene neni neno neo- neon neoo neox nepe nepi nepr nere nerf neri nero nerr nexe nexi nexo nexx nfer nfff nfip nfix nfon nief nien nieo nier nife niff niip niir nine nini nino nion nioo nipe nipr nire niro nixe nixi nnnn nnpi nnpr noer nofi nofx noie noif noin noio noir noix non- none noni nonn nono nonx noo- noon nooo noop noor nope nor- nore norf nori norn noro norr npif npin npri nren nron nrpn o-eo oen- oeno oere ofen ofer off- offe offo offr ofno ofor ofre oier oiii oion oire one- onee onei oneo onep oner onex onie onir onix onne onni onno onon onor ooer ooff oone oooo oore opei open opep oper opex opie opii opin opio opo- opon opor oppi oppo ore- oren oreo orer orex orfe orff orfi ori- orie orif orin orio orix orne orni orno oro- oroe orof oron oror orpe orpi orri orro oxen oxep oxer oxi- oxie oxo- oxof oxon oxox oxxo peen peep peer peff pein peio peip peir pen- pene peni penn peno peon peor pepe pepi pepo per- pere perf peri pern pero perp perr pfff pffr pien piep pier piff piip pine pini pinn pino pinp pion pipe pipi pipo pipp pire piri pirn piro pirr pixo pixx pnin pnon pnpo pnpp pnro poer poff pofi poin poio poix pone poni pono ponp poof poon poop poor pop- pope popi popo popp pore pori porn poro porr ppen pper ppie ppif pppn pppo pppp pprf pre- pree pref pren prep prex pri- prie prif prii prin prix prnp pro- proe prof pron proo prop prox prri reef reen reep refe reff refi refn refr reif reii rein