of his/her life
Elle n'a jamais lu un livre de sa vie.
She has never read a book in her life.
Le seul amour de sa vie, c'était maman.
The only love of his life was his mother.
— Salé, Sucré (1994)
Et s'il choisit sa famille, il passera le reste de sa vie à vous en vouloir.
And if he chooses his family, he'll spend the rest of his life resenting you.
— Crazy Rich Asians (2018)
L’attente est une épreuve dont chacun, à un moment de sa vie, fait l’expérience.
Waiting is an ordeal that everyone experiences at some point in their life.
C'est le plus grand match de sa vie.
It's the biggest game of his life.
Pour la première fois de sa vie.
For the first time in his life.