을 거 알다

know in advance it will happen

Two of the lines here show the pattern clearly: 어짜피 맛있을 거 알아 (I know it's going to be good anyway) and 다 죽을 거 알면서도 (even knowing they will all die) — a future clause packaged as 거, and 알다 saying you already know it. Most of the other lines are not this at all: they end in -을 거 아냐, a tag meaning 'it must be so, right?', which sounds similar but is 아니다, not 알다. Because the sample is mixed we are flagging this entry as unconfirmed rather than describing a pattern the lines below do not all show.

The examples below did not fully pin this one down — read them before relying on the entry above.