What is an objective noun and a possessive noun?

A subjective noun does something, e.g., George pushed. And objective noun is done to, e,g,. The bus pushed George. Possessive show ownership, e.g., George's car pushed the bus.

In English word order almost always shows whether nouns are or objects. Possessives are shown by . Other languages may use the word structure to show case, i.e., doing, being done to, or possessing.