-er -ey bbb bbd bbe bbi bbk bbn bbr bby bdb bdd bde bdi bdk bdr bdy be- beb bed bee bei bek ben ber bey bi- bib bid bie bii bik bin bir biy bkb bke bkk bkn bkr bnb bnd bne bni bnk bnn bnr brb brd bre bri brk brn brr bry by- byd bye byi byk byn byr dbb dbd dbe dbi dbk dbn dbr dby ddb ddd dde ddi ddk ddn ddr ddy de- deb ded dee dei dek den der dey di- dib did die dii dik din dir diy dkb dke dki dkk dkr dnb dnd dne dni dnk dnn dnr dny drb drd dre dri drk drn drr dry dy- dyb dyd dye dyk dyn dyr dyy ebb ebd ebe ebi ebk ebn ebr eby ed- edb edd ede edi edk edn edr edy eeb eed eee eek een eer eey eib eid eie eii eik ein eir ekb ekd eke eki ekr eky en- enb end ene eni enk enn enr eny erb erd ere eri erk ern err ery eyd eye eyn eyr i-d ibb ibd ibe ibi ibk ibn ibr iby idb idd ide idi idk idn idr idy ie- ied iee iei iek ien ier iey iib iid iie iii iin iir ikb ike iki ikk ikr in- inb ind ine ini ink inn inr iny ir- irb ird ire iri irk irn irr iry iye iyr iyy kbb kbd kbe kbi kbk kbn kbr kdb kde kdk kdr kdy ke- keb ked kee kei kek ken ker key kib kid kie kii kik kin kir kkb kke kki kkk kkn kkr kky kn- knd kne kni knk knn knr krd kri krk krn krr kry kyd kye kyn kyr n-i nbb nbd nbe nbi nbk nbn nbr ndb ndd nde ndi ndk ndn ndr ndy ne- neb ned nee nei nek nen ner ney nib nid nie nii nik nin nir nke nki nkk nkn nkr nky nnb nne nni nnk nnn nrb nrd nre nri nrk nrn nrr nry nyd nye nyk nyn nyy rbb rbd rbe rbi rbk rbn rbr rdb rdd rde rdi rdn rdr rdy re- reb red ree rei rek ren rer rey rib rid rie rii rik rin rir riy rkb rke rkk rky rnb rnd rni rnn rnr rny rrb rrd rri rrk rrn rrr ry- ryd rye ryk ryn ryr ryy ybe ybi ybr yby yde ydn ydy yeb yed yee yei yek yen yer yey yid yie yii yin yir yki ykk ykn ynd yne ynk ynn yny yre yrn yyb yye yyy