ia
riet
dien
iu
io
ii
[aeiouy]bl$
mbl$
tl$
sl$
[aeiou]{3}
^mc
ism$
(.)(?!\1)([aeiouy])\2l$
[^l]llien
^coad.
^coag.
^coal.
^coax.
(.)(?!\1)[gq]ua(.)(?!\2)[aeiou]
dnt$
thm$
ier$
iest$
[^aeiou][aeiouy]ing$