during his or her lifetime
Mais de son vivant, il répétait qu'il voulait revenir vivre ici.
But during his lifetime, he kept saying that he wanted to come back and live here.
— Secret Sunshine (2007)
De son vivant, il se souciait de vivre.
While he was alive, he cared about living.
— Tout sur ma mère (1999)
Je n'ai rien fait pour elle de son vivant.
I did nothing for her while she was alive.
— Voyage à Tokyo (1953)
J'ai certes vu la victime de son vivant.
I did indeed see the victim while they were alive.
— Rashōmon (1950)
De son vivant, votre mari parlait du don d'organes ?
Did your husband ever talk about organ donation while he was alive?
— Tout sur ma mère (1999)
De son vivant, l'ancien chef adorait sa fille.
While he was alive, the former leader adored his daughter.
— Le Secret des poignards volants (2004)
On se paie un bout de terrain et on l'entretient de son vivant.
You buy yourself a piece of land and maintain it during your lifetime.
— Volver (2006)