digraphs
                shop
sh-o-p
trip
t-r-i-p
lamp
l-a-m-p
tank
t-ank
submit
sub-mit
chat
ch-a-t
block
b-l-o-ck
past
p-a-s-t
song
s-ong
problem
prob-lem
when
wh-e-n
twig
tw-i-g
bent
b-e-n-t
bang
b-ang
comment
com-ment
brush
b-r-u-sh
flash
f-l-a-sh
brisk
b-r-i-s-k
stung
s-t-ung
plastic
plas-tic
splash
s-p-l-a-sh
slush
s-l-u-sh
batch
b-a-t-ch
bring
b-r-ing
frantic
fran-tic