-er -ey ddd dde ddi ddk ddp ddr ddt ddy de- ded dee dei dek dep der det dey di- did die dii dik dip dir dit diy dke dki dkk dkp dkr dkt dpd dpe dpi dpk dpp dpr dpt drd dre dri drk drp drr drt dry dtd dte dti dtk dtp dtr dtt dty dy- dyd dye dyk dyp dyr dyy ed- edd ede edi edk edp edr edt edy eed eee eek eep eer eet eey eid eie eii eik eip eir eit ekd eke eki ekp ekr ekt eky ep- epd epe epi epp epr ept erd ere eri erk erp err ert ery etd ete eti etk etp etr ett ety eyd eye eyp eyr eyt i-d idd ide idi idk idp idr idt idy ie- ied iee iei iek iep ier iet iey iid iie iii iip iir iit ike iki ikk ikr ikt ipd ipe ipi ipp ipr ipt ipy ir- ird ire iri irk irp irr irt iry itd ite iti itk itp itt ity iye iyr iyt iyy k-t kde kdk kdp kdr kdt kdy ke- ked kee kei kek kep ker ket key kid kie kii kik kip kir kit kke kki kkk kkp kkr kkt kky kpd kpe kpi kpk kpp kpr kpt krd kri krk krp krr krt kry kte ktk ktp ktr ktt kyd kye kyp kyr kyt p-p pdd pde pdi pdk pdp pdr pdt ped pee pei pek pep per pet pey pid pie pii pik pip pir pit pkd pke pki pkp pkr pkt pky ppd ppe ppi ppk ppp ppr ppt prd pre pri prk prp prr prt pry pt- ptd pte pti ptk ptp ptr ptt pty py- pyd pye pyk pyr pyt rdd rde rdi rdp rdr rdt rdy re- red ree rei rek rep rer ret rey rid rie rii rik rip rir rit riy rke rkk rkp rkt rky rpd rpe rpi rpk rpp rpr rpt rrd rri rrk rrp rrr rrt rtd rte rti rtk rtp rtr rtt rty ry- ryd rye ryk ryr ryy tdd tde tdi tdk tdp tdr tdt tdy te- ted tee tei tek tep ter tet tey tid tie tii tik tip tir tit tiy tke tkk tkp tkr tkt tky tpd tpe tpi tpk tpp tpr tpt trd tre tri trk trp trr trt try ttd tte tti ttk ttp ttr ttt tty tyd tye typ tyr tyt yde ydt ydy yed yee yei yek yep yer yet yey yid yie yii yip yir yit yki ykk ypd yre yrp yrt ytd yte ytk ytp ytr ytt yye yyt yyy