Use
Reuse
Connect
Disconnect
Possible
Impossible
Response
Responsible
Appear
Disappear
Argue
Argument
Believable
Unbelievable
Patient
Impatient
Likely
Unlikely
Move
Movement
Beauty
Beautiful
Dispensable
Indispensable
Journal
Journalist
Safe
Unsafe
Nerve
Nervous
Complete
Incomplete
Comfort
Comfortable
Care
Careful
Agree
Disagree
Credible
Incredible