Where the Action Is ended in 1967.
Action Réaction ended in 1991.
World in Action ended in 1998.
Action Park ended in 1996.
Action Stories ended in 1950.
Regional Action ended in 1977.
Amiga Action ended in 1996.
Citizen Action ended in 1997.
Amstrad Action ended in 1995.
if by "cation" you mean action, then ate is an action verb that doesn't end in ed. so, no they don't all end in ed
action
The declining action is towards the end of the story.
Liberian Action Party ended in 2009.