would think
I said I'd think about it.
Je penserais le faire, mais je le ferais pas.
I might consider doing it, but I wouldn’t.
— Laurence Anyways (2012)
Si tu mourais là, que penserais-tu de ta vie ?
If you died there, what would you think of your life?
— Fight Club (1999)
Oui, c'est exactement ce que je penserais.
Yes, that's exactly what I would think.
Si j'étais toi, j'y penserais à deux fois avant d'emprunter cette voie.
If I were you, I’d think twice before going down that road.