tell them
Qu'est-ce qu'on va leur dire ?
What are we going to tell them?
Tu aurais pu juste le leur dire.
You could have just told them.
Je ne sais pas comment leur dire.
I don't know how to tell them.
I forgot to tell them.
Comment vais-je leur dire que notre concept, c'est le bonheur ?
How am I going to tell them that our concept is happiness?
— No (2012)
I'll tell them everything.
What are you going to tell them?