French phrase
Décidons de ~.
Meaning
Let's decide on ___.
When to use it
A proposal to settle a plan together. It is polite but natural in casual conversation.
Example dialogue
Décidons de la date du départ.
Let's decide on the departure date.
Bonne idée, samedi ou dimanche, ça te va ?
Good idea. Which works better for you, Saturday or Sunday?