1. If I were you, ...... Is 'were' the only word matching with 'I' when we talk about conditional? 'were' here doesn't mean past tense, right?
2. Though the best people breed with best people and they finally get a good child which has all good traits, (but) in this soceity, not everyone is good. I know that if you write a 'though' sentence, then you can't use 'but', so i have a question: if i write a very long sentence, and it requires some commas, then how could reader knows where 'but' goes? In my example, i should have added a comma between 'best people' and 'and', but i didn't do it because then, if there are too many commas, how can reader knows that i want 'but' after 'good traits'? How can they understand my meaning?
Thanks a lot for explanation.