Formal:
* Nous allons apprendre: This is the most formal way to say it.
* On va apprendre: This is a more informal version of the above, but still polite.
Informal:
* On va apprendre: This is the most common and informal way to say it.
* On apprendra: This is another informal option, emphasizing the future aspect.
Example sentences:
* Nous allons apprendre le français. (We are going to learn French.)
* On va apprendre à jouer du piano. (We are going to learn how to play the piano.)
* On apprendra à connaître la ville. (We are going to get to know the city.)
You can choose the most appropriate phrase based on the context and your relationship with the person you are talking to.