You could talk about the infinite
perspective... I SWEAR I know it.
The Big Bang Theory Season 10, Episode 22
Born amongst lions, our curse from within.
I will slay him, I SWEAR.
Game of Thrones Season 6, Episode 8
I haven’t seen anything, I SWEAR,
I haven’t seen anything!
Money Heist Season 1, Episode 1
I also love how you never use SWEAR words.
The Big Bang Theory Season 10, Episode 6
I SWEAR it by the Old Gods and the new.
Game of Thrones Season 2, Episode 5