Naming of Compounds depends upon the element you will combine.
First step is to identify if what you are combining ionic which are metal+ non-metal, and covalent which are nonmetal+ nonmetal, or metal + Hydroxides. etc
Second is knowing their polyatomic ions. For example Al2O3 in the nature of Aluminum Ion is 3+ and Oxygen Ion (OXIDE) is -2. Take note that the -ygen was replaced with -ide. making the compound Aluminum Oxide