French phrase
Vous n'auriez pas dû !
Meaning
You shouldn't have!
When to use it
Criticizes a past action as wrong or unwise. Often used after a decision, including in workplace feedback.
Example dialogue
Vous n'auriez pas dû !
You shouldn't have!
Je m'excuse, je vais corriger cela immédiatement.
I'm sorry, I'll correct that immediately.