Trigraph   Frequency

   dro            8
   gkc            4
   gsd            4
   cdy            3
   ogk            3
   sdr            3
   sxq            3
   bok            2
   ddk            2
   ddr            2
   dgk            2
   dkq            2
   drk            2
   dsx            2
   kdd            2
   kqo            2
   kus            2
   kxd            2
   lbo            2
   myd            2
   ofo            2
   oku            2
   ood            2
   oxs            2
   pdr            2
   qox            2
   qwk            2
   rkd            2
   rob            2
   roc            2
   rop            2
   sdg            2
   sno            2
   sqw            2
   sxd            2
   sxo            2
   usx            2
   xon            2
   xsq            2
   ydd            2
   ypd            2
   aek            1
   bcd            1
   bck            1
   bcl            1
   bdr            1
   biz            1
   bkx            1
   blb            1
   boc            1
   bod            1
   boo            1
   bsx            1
   bye            1
   byw            1
   cae            1
   ccu            1
   cdc            1
   cdl            1
   cdr            1
   cem            1
   cgs            1
   ckg            1
   ckm            1
   clb            1
   cog            1
   com            1
   cpy            1
   crm            1
   csn            1
   cte            1
   cuo            1
   cwo            1
   cyp            1
   dco            1
   dcs            1
   dct            1
   deb            1
   dks            1
   dkx            1
   dlb            1
   dns            1
   dof            1
   drb            1
   drs            1
   drx            1
   drz            1
   dsn            1
   dye            1
   dyk            1
   dyo            1
   dyp            1
   ebs            1
   ecd            1
   ecw            1
   edc            1
   ekb            1
   emm            1
   eqr            1
   ewl            1
   fon            1
   fox            1
   gcy            1
   gkb            1
   gkv            1
   hkx            1
   icd            1
   iux            1
   izd            1
   kbc            1
   kbk            1
   kbu            1
   kca            1
   kcd            1
   kcg            1
   kck            1
   kcp            1
   kdn            1
   kgk            1
   kgs            1
   kmr            1
   ksx            1
   kvi            1
   kvk            1
   kvv            1
   kwy            1
   kxk            1
   kxn            1
   kyl            1
   lby            1
   ldk            1
   lob            1
   mbi            1
   mbo            1
   mmo            1
   moc            1
   mrs            1
   ndr            1
   ngs            1
   nkd            1
   nog            1
   nok            1
   nsv            1
   nyd            1
   obc            1
   obd            1
   obo            1
   occ            1
   ocd            1
   oce            1
   oco            1
   odo            1
   odr            1
   ods            1
   ogc            1
   okc            1
   omb            1
   omy            1
   ond            1
   ong            1
   onk            1
   opk            1
   ops            1
   oxe            1
   oxp            1
   ozd            1
   ozk            1
   pby            1
   pkw            1
   psb            1
   pyb            1
   qgs            1
   qog            1
   qrd            1
   qsx            1
   rbo            1
   rds            1
   rmb            1
   rom            1
   roz            1
   rso            1
   rsx            1
   rxo            1
   rzy            1
   sbc            1
   scr            1
   sof            1
   svv            1
   sxm            1
   tec            1
   uoz            1
   uxy            1
   vcd            1
   vic            1
   viu            1
   vkx            1
   vsc            1
   vvc            1
   vvi            1
   wdr            1
   wkg            1
   wky            1
   wlo            1
   woo            1
   wye            1
   xde            1
   xdr            1
   xds            1
   xdy            1
   xew            1
   xkv            1
   xmy            1
   xny            1
   xog            1
   xpb            1
   xqg            1
   xqo            1
   xqs            1
   xyh            1
   ybl            1
   ydr            1
   yec            1
   yed            1
   yeq            1
   yhk            1
   ykv            1
   yld            1
   yox            1
   yvs            1
   ywd            1
   zdc            1
   zdk            1
   zkb            1
   zyv            1