if need be in French
if need be in French
au besoin
(idiomatic) If necessary; if there is a need.
en cas de besoin
(idiomatic) If necessary; if there is a need.
[[si|s']]il faut
(idiomatic) If necessary; if there is a need.
si besoin est
(idiomatic) If necessary; if there is a need.
si nécessaire
(idiomatic) If necessary; if there is a need.