So, use cualquier or cualquiera when you want to say "any", one single thing. "Cualquier" is the shorted form, and "cualquiera" is the full form. Just pick any of them and be careful with the placement.
So, use cualquier or cualquiera when you want to say "any", one single thing. "Cualquier" is the shorted form, and "cualquiera" is the full form. Just pick any of them and be careful with the placement.