-er -ic c-- ccc ccd cce cci cck ccn ccr ccs cct cdc cdd cde cdi cdk cdn cdr cds cdt ce- cec ced cee cei cek cen cer ces cet ci- cic cid cie cii cik cin cir cis cit ckc ckd cki cks ckt cn- cnc cnd cne cni cnn cnr cns cnt crc crd cre cri crk crn crr crs crt csc csd cse csi csk csn csr css cst ctc ctd cte cti ctk ctn ctr cts ctt dcc dcd dce dci dck dcn dcr dcs dct ddc ddd dde ddi ddk ddn ddr dds ddt de- dec ded dee dei dek den der des det di- dic did die dii dik din dir dis dit dkc dke dki dkk dkr dks dkt dnc dnd dne dni dnk dnn dnr dns dnt drc drd dre dri drk drn drr drs drt dsc dsd dse dsi dsk dsn dsr dss dst dtc dtd dte dti dtk dtn dtr dts dtt ec- ecc ecd ece eci eck ecn ecr ecs ect ed- edc edd ede edi edk edn edr eds edt eec eed eee eek een eer ees eet eic eid eie eii eik ein eir eis eit ekc ekd eke eki ekr eks ekt en- enc end ene eni enk enn enr ens ent erc erd ere eri erk ern err ers ert es- esc esd ese esi esk esn esr ess est etc etd ete eti etk etn etr ets ett i-d icc icd ice ici ick icn icr ics ict idc idd ide idi idk idn idr ids idt ie- iec ied iee iei iek ien ier ies iet iic iid iie iii iin iir iis iit ikc ike iki ikk ikr iks ikt in- inc ind ine ini ink inn inr ins int ir- irc ird ire iri irk irn irr irs irt is- isc isd ise isi isk isn isr iss ist itc itd ite iti itk itn its itt k-t kcc kcd kce kci kck kcn kcr kcs kct kdc kde kdk kdr kds kdt ke- kec ked kee kei kek ken ker kes ket kic kid kie kii kik kin kir kis kit kkc kke kki kkk kkn kkr kks kkt kn- knc knd kne kni knk knn knr knt krc krd kri krk krn krr krs krt ksc ksd kse ksi ksk ksn ksr kss kst ktc kte ktk ktn ktr kts ktt n-i ncc ncd nce nci nck ncn ncr ncs nct ndc ndd nde ndi ndk ndn ndr nds ndt ne- nec ned nee nei nek nen ner nes net nic nid nie nii nik nin nir nis nit nkc nke nki nkk nkn nkr nks nkt nnc nne nni nnk nnn nns nnt nrc nrd nre nri nrk nrn nrr nrs nrt nsc nsd nse nsi nsk nsn nsr nss nst ntc ntd nte nti ntk ntn ntr nts ntt rcc rcd rce rci rcn rcr rcs rct rdc rdd rde rdi rdn rdr rds rdt re- rec red ree rei rek ren rer res ret ric rid rie rii rik rin rir ris rit rkc rke rkk rks rkt rnc rnd rni rnn rnr rns rnt rrc rrd rri rrk rrn rrr rrs rrt rsc rsd rse rsi rsk rsn rsr rss rst rtc rtd rte rti rtk rtn rtr rts rtt scc scd sce sci sck scn scr scs sct sdc sdd sde sdi sdk sdn sdr sds sdt se- sec sed see sei sek sen ser ses set sic sid sie sii sik sin sir sis sit sk- skc skd ske ski skk skr sks skt snc snd sne sni snk snn snr sns snt sr- src srd sre sri srk srn srr srs srt ss- ssc ssd sse ssi ssk ssn ssr sss sst stc std ste sti stk stn str sts stt tcc tcd tce tci tck tcn tcr tcs tct tdc tdd tde tdi tdk tdn tdr tds tdt te- tec ted tee tei tek ten ter tes tet tic tid tie tii tik tin tir tis tit tkc tke tkk tkr tks tkt tnc tnd tne tni tnk tnn tnr tns tnt trc trd tre tri trk trn trr trs trt tsc tsd tse tsi tsk tsn tsr tss tst ttc ttd tte tti ttk ttn ttr tts ttt