-al -ly a-a a-b a-t aaa aab aal aar aat aay ab- aba abb abl abr abt aby al- ala alb all alr alt aly ar- ara arb arl arr art ary at- ata atb atl atr att ay- aya ayl ayr ayt baa bab bal bar bat bay bba bbb bbl bbr bbt bby bla blb bll blr blt bly bra brb brl brr brt bry bta btb btl btr btt bty by- bya byl byr byt la- laa lab lal lar lat lay lba lbb lbl lbr lbt lla llb lll llr llt lly lra lrb lrr lrt lry lta ltb ltl ltr ltt lya lyl lyr lyt ra- raa rab ral rar rat ray rba rbb rbl rbr rbt rla rll rlr rlt rly rra rrb rrl rrr rrt rta rtb rtl rtr rtt rty ry- rya ryr ryy taa tab tal tar tat tay tba tbb tbl tbr tbt tla tll tlr tlt tra trb trl trr trt try tta ttb ttl ttr ttt tty tya tyl tyr tyt yaa yab yal yar yat yay ybl ybr yby yll ylr ylt yly yra yrt yta ytl ytr ytt yyb yyt yyy