Barton Change Rule
more muddy
muddier
cheerful
to shop now
shopping
deny (past tense)
denied
able
adaptable
past tense omit
omitted
copy (past tense)
copied
more
faster
past tense of plug
plugged
try (past tense)
tried
the most
fastest
past tense of spot
spotted
full of plenty
plentiful
a person
waiter
past tense of jog
jogged