The bolded lines are what's on the lyric sheet but not sung.
Or, if they are, I can't hear it at all, please correct me if I'm wrong.
now I know for certain
shedding any
burn motherfucker
like an end
like an end
like the fucking end
like the end
Also: it's getting hard to know which side is the dream
The first and third bolded sections are included in the lyrics of the nin.com mp3 version of the song, but the second is only on the lyrics sheet in the physical component.