Here are the 42 main letter sounds in English.
GROUP 1
ant
ink
net
puff
snake
tennis
GROUP 2
ck (cat)
drum
egg
hop
meal
rag
GROUP 3
bat
fish
gurgle
lollipop
on
umbrella
GROUP 4
pain
bee
tie
jam
goat
fork
GROUP 5
book
moon
strong
van
wind
buzz
GROUP 6
chicken
hush
this
three
fox
yoghurt
GROUP 7
arm
mixer
oil
ouch
quack
queue
With thanks to Jolly Phonics for permission to reproduce these recordings.