There’s at least the wiki article on the English subjunctive.

Personal disclaimer: To me (though I’m not a perfect reporter), (American) English feels like it barely has a subjunctive mood in practice anymore. If you’re familiar with the pragmatic application of the subjunctive in your own language or others, that may help, but YMMV for how often and how consistently you’ll hear it used in everyday English speech (at least in the US).

I wonder how random chance works on that snap though: Is it 50% of every sentient population or just 50% of sentient life? What if humanity were wholly spared by the snap just based on statistical chance?