Silent Letters
B - comb, dumb
D - sandwich, Wednesday
G - sign, foreign
GH - daughter, light, right
H - why, honest, hour
K - know, knight, knob
L - should, walk, half
P - cupboard, psychology
S - island
T - whistle, listen, fasten
U - guess, guitar
W - who, write, wrong
Unusual Letter Combinations
GH = 'F'
cough, laugh, enough, rough
CH = 'K'
chemistry, headache, Christmas, stomach
EA = 'EH'
breakfast, head, bread, instead
EA = 'EI'
steak, break
EA = 'EE'
weak, streak
OU = 'UH' country, double, enough