will notify, will let know
¡Les avisaremos!
We'll let you know!
— Mulholland Drive: Sueños, misterios y secretos (2001)
Avisaremos.
We'll let you know.
— Moonrise Kingdom: Amor Infantil (2012)
Le avisaremos a sus amigos y familiares.
We will notify their friends and family.
— La Escafandra Y La Mariposa (2007)
Les avisaremos tan pronto como esté aquí.
We'll let you know as soon as it's here.
— Ne Zha (2019)