will think (of/about)
Tu penseras à ce que tu dois dire et faire.
You will think about what you need to say and do.
— Enquête sur un citoyen au-dessus de tout soupçon (1970)
Comme ça, tu ne penseras jamais à t'enfuir.
That way, you'll never think of running away.
— Mademoiselle (2016)
En moins de huit mois, tu penseras complètement différemment.
In less than eight months, you’ll think completely differently.