French phrase
Il y aura ~ adultes et ~ enfants.
Meaning
There will be ___ adults and ___ children.
When to use it
States the expected number of adults and children. Used in reservations or formal arrangements to give the group size clearly.
Example dialogue
Pour la réservation, combien serez-vous ?
For the reservation, how many people will be in your party?
Il y aura quatre adultes et trois enfants.
There will be four adults and three children.