Is the economic base the basic economic system?

Personally, I think that the economic base is the relations of production, and therefore the public ownership of the means of production is dominant (as opposed to the private ownership of the means of production in capitalism), while the basic economic system is the superstructure (I suggest you take a look at the definition of the superstructure), and the economic base is the basic economic system, which is the basic economic system, and the basic economic system is the reflection of the economic base.