ch- and -ch
th- and -th
sh- and -sh
-ck and -ke
ee
oo
ai
ay
oa
ea
-a-e
-i-e
-u-e
-o-e
-ind
-ild
old
-ow
-oi and -oy
-ed /ed/
-er and -est
P*-s and P*-es
-ing
-ed /d/
-s and -es
-ed /t/