[ei]:
hey,they,grey,storey,prey,trey,gley riley
[ei]:
main,rain,mountain,pain,faint,wait,laid,maid
[oi]:
toy,boy,boycott,annoy,troy,loyal,royal,soy
[oi]
poison,noise,oil,spoil,coin,soil,roil,moist
[r]
oral,natural,narrow [ei]:
hey,they,grey,storey,prey,trey,gley riley
[ei]:
main,rain,mountain,pain,faint,wait,laid,maid
[oi]:
toy,boy,boycott,annoy,troy,loyal,royal,soy
[oi]
poison,noise,oil,spoil,coin,soil,roil,moist
[r]
oral,natural,narrow