
I'll BET you've got it memorized
since you got here.
Game of Thrones Season 5, Episode 3

Oh, no, I BET you didn't."
The Big Bang Theory Season 5, Episode 4

I BET if we put our heads together,
we could come up with a solution.
The Big Bang Theory Season 10, Episode 9

Why would I BET on the man
with the worst chance?
Game of Thrones Season 2, Episode 2

Bet that's totally it.
Breaking Bad Season 3, Episode 10