how can you
Comment tu peux en être sûre ?
How can you be so sure?
Je crois savoir comment tu peux satisfaire ta vocation.
I think I know how you can fulfill your calling.
— Black Panther (2018)
Je ne vois pas comment tu peux ignorer ça.
I don't see how you can ignore that.
How could you do this to me?
Mais comment tu peux oublier ta culotte ?
But how could you forget your underwear?
— Parasite (2019)
Comment tu peux me demander ça ?
How can you ask me that?
Comment tu peux te regarder en face ?
How can you look at yourself in the mirror?
How can you know that?