Many times continuous and continual are treated as interchangeable, but they are not. They are commonly used whenever the passage of time is involved in legal documents, for example, in contracts of employment or loan documentation.
continual (adj): happening repeatedly; always happening - The company will not tolerate an employee's continual absence for reasons other than disability or sickness.

          continuance(n): to delay an event such as a trial and to decide that it should happen at a later date; a postponement; an adjournment - To change your trial date you must file a Motion for Continuance along with a $40 fee.
          continuous (adj(: without interruption - Investor's continuous employment shall cease when Investor ceases to be actively employed by the Company.
         continuing (adj): continuing shareholder
Fonte: Lexmail