TV series example of the word

Breaking Bad Season 2, Episode 4
Wait. No, you cannot be serious.

Breaking Bad Season 4, Episode 2
l mean, l cannot be alone in feeling this way.

Game of Thrones Season 6, Episode 4
That cannot happen.

Game of Thrones Season 1, Episode 10
You cannot mean to hold to Joffrey, my lord.

Game of Thrones Season 3, Episode 1
since I cannot prove that you are not mine.