I've translated the next sentences:
- A brother of my friend's will have finished university by the summer and he is looking forward to teaching at school.
- Tomorrow he'll be working all the day and we'll go to pool because I think he'll have finished all his work by that time.
These two sentences belong to the same exercise. And can't be get from the context. So I would like to know if I use "double possessive" correctly. And could I use "We're going to pool" as it is arrangement? Or as we aren't sure about his success at doing his work and we haven't arranged our meeting at a concrete time I should use simple time?