I could go to the cinema.
As I am not a native speaker, usage of modal verbs is always confusing to me. I understand the above sentence in following cases. So please say if I am wrong.
Case1: It is possible for me to go to cinema, I have that ability. Going or not going is my choice.
Case2: If some unstated hypothetical conditions were satisfied, I would be able to go to cinema. For example: I could to go to the cinema, If there were no exam.
Does given two cases of interpretations possible for the given sentence? Are there any other interpretations?