How do you say we are going to have fun in french?

There are a few ways to say "We are going to have fun" in French, depending on the context and level of formality:

Formal:

* Nous allons nous amuser. (This is the most literal and formal translation.)

Informal:

* On va s'amuser. (This is a more casual and common way to say it.)

* On va bien s'amuser. (This emphasizes that you will have a lot of fun.)

* On va rigoler. (This is a very informal way to say "we are going to laugh" and implies fun.)

For a specific activity:

* On va s'éclater à [activity]. (This means "We are going to have a blast at [activity]")

Remember to choose the appropriate expression based on your audience and the situation.