(1)
可被设定义务的；适于被设定义务或职责的

(2)
应负责任的；有法律责任的

(3)
应支付的；可支付的

(4)
可能被控的

• perpetual care
• perpetual commissioner
• perpetual contract
• perpetual curacy
• perpetual curate
• perpetual easement
• perpetual edict
• Perpetua lex est nullam legem humanam ac positivam perpetuam esse, et clausula quae abrogationem excludit ab initio non valet.
• perpetual franchise
• perpetual injunction
• perpetual lease
• perpetual rate
• perpetual restriction
• perpetual statute
• perpetual succession
• perpetuam rei memoriam
• perpetuating testimony
• perpetuation of testimony
• perpetuity
• perpetuity of the king
• perpetuum rei testimonium
• per power of attorney
• per pro.
• per proc.
• per procuration