如何快速听懂美国人说话？看完你就会明白（第29期）

My mother's buy poler bipolar. And my father's an alcoholic, and an addict. He takes what he pleases and he offers nothing, no money, no support. I've done what I could to help raise my siblings. I wish I could've done more.

I wish I could've done more = 我希望我当时能杀了他？