r u n
run
s i t
sit
r u b
rub
m u d
mud
s u n
sun
g u m
gum
t u b
tub
s u d
sud
p u p
pup
b a d
bad
f u n
fun
s a d
sad
g l a d
glad
p o p
pop
t u g
tug
What is Mom doing?
She is moving.
