TV series example of the word

The Big Bang Theory Season 6, Episode 21
- Keep reading. What does it say? - No, I don't know if I should.

The Big Bang Theory Season 9, Episode 9
No, how does it work?

The Big Bang Theory Season 12, Episode 14
I should-- where does it end?

The Big Bang Theory Season 7, Episode 21
Oh, he does. He <i>so</i> does. What should he do?

Game of Thrones Season 5, Episode 5
Why does the Citadel have the biggest library?