Make an adjective with 'desire'
desirable, desired
Use a prefix to make an adjective with 'legal'
illegal
Make a noun with 'advise'
advice, adviser
Make adverb
HAPPY
Make adverb
FINANCIAL
financially
Make an adjective with 'doubt'
doubtful
Use a prefix to make an adjective with 'acceptable'
unacceptable
Make a noun with 'grow'
growth
Make adverb (adj -> adv)
COMFORT
comfortably
Make adverb
AUTOMATIC
automatically
Make an adjective with 'end'
endless
Use a prefix to make an adjective with 'polite'
impolite
Make a noun with 'high'
height
Make adverb (adj -> adv)
EXPECT
Make adverb
PRIMARY
primarily
Make an adjective with 'decorate'
decorative
Use a prefix to make an adjective with 'willing'
unwilling
Make a noun with 'believe'
belief, believer
Make adverb (adj -> adv)
ENTHUSIASM
enthusiastically
Make adverb (adj - adv)
CONTINUE
continually, continously
Make an adjective with 'extend'
extended, extendable
Use a prefix to make an adjective with 'convenient'
inconvenient
Make a noun with 'see'
sight
Make adverb (adj -> adv)
SCIENCE
scientifically
Make adverb (adj -> adv)
SURPRISE
surprisingly