Something that happens every three years is a triennialevent.
Yes
A triennial event happens every three years.
Quadrennial
Every three years
An event that occurs once every three years.
every 4 years
It's probably around once every three to five years.
every 10 years, then it was every 6 years, then finally every year.
Every other or every game, they get paid to wear a brand so they can just keep getting new ones
Every 4 years
Every two years