Hello, there is a section called "Variable Subjunctive" that has the sentence:
no tengo un profesor que viva en madrid
which means:
I don't have a teacher that lives in madrid.
My question is why would this be a subjunctive, it seems like what this person is saying is a fact that he knows that he doesn't have a teacher that lives in madrid. Or maybe he's trying to say that he doesn't have a teacher that he KNOWS OF. Idk I just want to know why it's a subjunctive. thank you