-er -ey ddd dde ddi ddr ddu ddy de- ded dee dei der deu dey di- did die dii dir diu diy drd dre dri drr dru dry dud due dui dur duy dy- dyd dye dyr dyu dyy ed- edd ede edi edr edu edy eed eee eer eey eid eie eii eir eiu erd ere eri err eru ery eu- eud eue eui eur eyd eye eyr i-d idd ide idi idr idu idy ie- ied iee iei ier iey iid iie iii iir iiu ir- ird ire iri irr iru iry iu- iud iue iui iur iye iyr iyy rdd rde rdi rdr rdu rdy re- red ree rei rer reu rey rid rie rii rir riy rrd rri rrr rru rud rue rui rur ruu ruy ry- ryd rye ryr ryu ryy udd ude udi udr udu ued uee uei uer uey uid uie uii uir uiu ur- urd ure uri urr uru ury uue uur uuu uyi uyu yde ydy yed yee yei yer yey yid yie yii yir yre yru yud yue yui yur yuu yuy yye yyu yyy