subjunctive after comment ca se fait que......

Question

I now know that 'comment ca se fait que..' is followed by the subjunctive, but i don't understand the reason for this. could someone please explain?thank you

Céline Pickard · Accepted Answer

Bonjour Jacqueline,
"Comment ça se fait que..." (which means "How come..." or "How is it that...") introduces an element of doubt, surprise, or uncertainty about the situation that follows. In French, when a clause expresses doubt, emotion, surprise, possibility, or uncertainty, it triggers the use of Le Subjonctif. So, in effect, you’re reacting to something unexpected or wondering about how something could be true. It's this emotional/subjective viewpoint that triggers the use of Le Subjonctif.
I hope this is helpful.
Bonne journée !