-ene -one eeee eeng egee egge eggo eggp egne ego- egon egpe egpn egpo enee eneg eneo enge engg engo enne eno- enoe enon enp- eone epee epen epon eppo eppp geen geep gege gegg gego gen- gene geng genn geno geo- geog geon gepe gggg ggpo gnoo goen gogo gon- gone gong gonn gono goog goon goop gope gopo gpgp neen neep nege nego negp nene neng neno neo- neon neoo nepe ngen ngon nngn nnnn nogg nogo non- none nong nonn nono noo- noon nooo noop nope o-eo oen- oeno ogee ogen ogge ogog ogon one- onee oneg oneo onep onge ongo onne onno onon onpg oone oooo open opep opng opo- opon oppo peen peep pegg pego pen- pene peng penn peno peon pepe pepo pnon pnpo pnpp poge pogg pogo pone pong pono ponp poon poop pop- pope popo popp ppen pppn pppo pppp