obligatoire
In France, voting isn't obligatory.
En France, le vote n’est pas obligatoire.
Presence of all members is obligatory.
La présence de tous les membres est obligatoire.
Is that obligatory, Scotland yard?
Est-ce obligatoire, Scotland Yard ?
— Two Is a Family (2016)
It's obligatory, I guess.
C’est obligatoire, je suppose.
— Falling Down (1993)
It's obligatory.
C’est obligatoire.
— La Dolce Vita (1960)