if energy cant be created or destroyed, then what was the energy that was transformed in to Dark energy? and what could Dark energy transform in to?

if energy cant be created or destroyed, then what was the energy that was transformed in to Dark energy?

 

The law of conservation of energy still holds. Why do you assume that Dark energy was transformed from some other form of energy?

 

and what could Dark energy transform in to?

 

In principle it can be transformed to any other form of energy.

What makes it dark energy

Could dark energy simply be energy which has lost it's spin? Possibly that the energy has traveled outside the gravity of a galactic system and therefore is no longer induced to spin.

Dark energy is an intrinsic property of space, based on the cosmological constant in gneral relativity. It can't be treated like any other form of energy.