Questions & Answers about Nous nous occupons du jardin.
They do two different jobs.
- The first nous is the subject pronoun: we
- The second nous is a reflexive/pronominal pronoun, part of the verb s'occuper de
So:
- Nous = we
- nous occupons = take care of / deal with, in the we form
In other words, s'occuper de is a verb expression that normally needs that extra pronoun.