would understand
Anche se te lo dicessi, non capiresti.
Even if I told you, you wouldn't understand.
— Burning - L'amore brucia (2018)
Ma come capiresti di averne incontrato uno?
But how would you know you've met one?
— Jojo Rabbit (2019)
Se tu mi volessi bene la metà di quanto te ne voglio io, capiresti!
If you loved me half as much as I love you, you'd understand!
— La dolce vita (1960)
Se vedessi mia sorella, capiresti perché.
If you saw my sister, you would understand why.
— Love Actually - L'amore davvero (2003)