
They EXIST in case we ever make contact
with an alien civilization.
The Big Bang Theory Season 9, Episode 10

...who doesn't believe
parallel universes EXIST.
The Big Bang Theory Season 4, Episode 5

There must EXIST certain words
in a certain specific order...
Breaking Bad Season 3, Episode 10

which means somewhere,
the memories EXIST.
Westworld Season 2, Episode 7

Disappears. lt ceases
to EXIST without me. No.
Breaking Bad Season 4, Episode 6