
I'm afraid
we MUST respectfully decline your request.
Game of Thrones Season 4, Episode 6

Of course you MUST.
The Big Bang Theory Season 4, Episode 2

The great hairy one insisted
he MUST have two battleaxes.
Game of Thrones Season 1, Episode 9

I MUST be.
Game of Thrones Season 1, Episode 8

I MUST be the bigger man.
The Big Bang Theory Season 6, Episode 9