How to say let`s in French?

How to say let`s in French?
How to say i am gonna, we are gonna...

Thanks!

"let's" like "let's go" ?

i am ganna = je vais
we are gonna = nous allons

thanks!
Sorry i did not understand how to say let`s in French.

I think you can't translate "let's" alone. There's no equivalent in French. To translate it, I would need to know with which verb you want to use it.

ex : let's go, let's do it

For example:
Let`s go!
Let`s do it!
Let`s go to the school!

Let`s go! = Allon-y !

Let`s do it! = Faisons-le !

Let`s go to the school! = Allons-y à l'école !

Sounds very interesting! Thank you!