-er -ic c-- ccc cce ccf cci ccm ccp ccr cct ccx ce- cec cee cef cei cem cep cer cet cex cfc cfe cff cfi cfm cfp cfr cft cfx ci- cic cie cif cii cim cip cir cit cix cmc cme cmf cmi cmm cmp cmr cmt cmx cpc cpe cpf cpi cpm cpp cpr cpt cpx crc cre crf cri crm crp crr crt crx ctc cte ctf cti ctm ctp ctr ctt ctx cxc cxf cxi cxp cxr cxt cxx ec- ecc ece ecf eci ecm ecr ect ecx eec eee eef eem eep eer eet eex ef- efc efe eff efi efm efp efr eft efx eic eie eif eii eim eip eir eit eix em- emc eme emf emi emm emp emr emt emx ep- epc epe epf epi epm epp epr ept epx erc ere erf eri erm erp err ert etc ete etf eti etm etp etr ett etx ex- exc exe exi exp exr ext exx fcc fce fcf fci fcm fcp fcr fct fcx fec fee fef fei fem fep fer fet fex ffc ffe fff ffi ffm ffp ffr fft ffx fic fie fif fii fim fip fir fit fix fmc fme fmf fmi fmm fmp fmr fmt fmx fpc fpe fpi fpm fpp fpr fpt fpx frc fre frf fri frm frp frr frt ftc fte ftf fti ftm ftp ftr ftt ftx fxe fxi fxm fxp fxr fxt fxx i-f icc ice icf ici icm icp icr ict ie- iec iee ief iei iem iep ier iet iex ifc ife iff ifi ifm ifp ifr ift ifx iic iie iif iii iim iip iir iit iix im- imc ime imf imi imm imp imt imx ipc ipe ipf ipi ipm ipp ipr ipt ipx ir- irc ire irf iri irm irp irr irt irx itc ite itf iti itm itp itt itx ixc ixe ixi m-f m-r mc- mcc mce mcf mci mcm mcp mcr mct mcx mec mee mef mei mem mep mer met mex mfc mfe mff mfi mfm mfp mfr mft mi- mic mie mif mii mim mip mir mit mix mmc mme mmf mmi mmm mmp mmr mmt mmx mpc mpe mpf mpi mpm mpp mpr mpt mpx mrc mre mrf mri mrm mrp mrr mrt mrx mtc mte mtf mti mtm mtp mtr mtt mtx mxc mxi mxp mxr p-p pcc pce pcf pci pcm pcp pcr pct pcx pec pee pef pei pem pep per pet pex pfc pfe pff pfi pfm pfp pfr pft pfx pic pie pif pii pim pip pir pit pix pmc pme pmf pmi pmm pmp pmr pmt pmx ppc ppe ppf ppi ppm ppp ppr ppt ppx prc pre prf pri prm prp prr prt prx pt- ptc pte ptf pti ptm ptp ptr ptt ptx pxc pxe pxm pxr pxt rcc rce rcf rci rcm rcp rcr rct rcx re- rec ree ref rei rem rep rer ret rex rfc rfe rff rfi rfm rfp rfr rft ric rie rif rii rim rip rir rit rix rmc rme rmf rmi rmm rmp rmr rmt rmx rpc rpe rpf rpi rpm rpp rpr rpt rpx rrc rrf rri rrm rrp rrr rrt rtc rte rtf rti rtm rtp rtr rtt rtx rxp rxr t-x tcc tce tcf tci tcm tcp tcr tct tcx te- tec tee tef tei tem tep ter tet tex tfc tfe tff tfi tfm tfp tfr tft tfx tic tie tif tii tim tip tir tit tix tmc tme tmf tmi tmm tmp tmr tmt tmx tpc tpe tpf tpi tpm tpp tpr tpt tpx trc tre trf tri trm trp trr trt trx ttc tte ttf tti ttm ttp ttr ttt ttx txe txf txi txt xcf xci xcp xcr xcx xee xem xep xer xet xex xfe xfm xft xfx xic xie xii xit xix xmc xmf xmi xmm xmp xmr xmt xmx xpc xpe xpf xpm xpp xpt xrc xrf xrt xrx xtc xtf xti xtm xtp xtr xtx xxi xxp xxx