They EXIST in case we ever make contact
with an alien civilization.
The Big Bang Theory Season 9, Episode 10
I know I've spent my life
denying that you EXIST.
The Big Bang Theory Season 9, Episode 11
who may or may not EXIST,
I'm supposed to just be alone?
The Big Bang Theory Season 5, Episode 20
Maybe they shouldn't EXIST.
Westworld Season 3, Episode 8
There must EXIST certain words
in a certain specific order...
Breaking Bad Season 3, Episode 10