if it were true
Si c'était vrai, il y aurait eu des preuves.
If that were true, there would have been evidence.
— Terminator 2 : Le Jugement dernier (1991)
Si c'était vrai, que feriez-vous ?
If that were true, what would you do?
Ouais, si c'était vrai, pourquoi tu nous le racontes ?
Yeah, if that were true, why are you telling us about it?
— The Man from Earth (2007)
Ce serait bien si c'était vrai.
It would be nice if it were true.
What if it were true?
Si c'était vrai, je serais pourchassé toute ma vie par quelqu'un comme moi.
If that were true, I’d be hunted down for the rest of my life by someone like me.
— Blade Runner 2049 (2017)