How to say "I live with..." in Japanese?

Question:

I live with my sister or I live with my friend

Answer:

quote:
"you can use 同居 doukyo or 同棲 dousei.

Eg.

watashi wa shukufu no toroko ni doukyo shiteimasu
私は叔父の所に同居しています。I live with my uncle [uncle's family]."

you mean tokoro right? not toroko

My japanese is not very good but how I would answer your question is...
姉／友達と一緒に住んでいます。
ane/tomodachi to isshoni sundeimasu.

姉(ane)-sister
友達(tomodachi)-friend
と(to)-particle to mark "sister" or friend. It means 'with' in english
一緒(isshoni)-together
住んでいます(sundeimasu)-live

Hope that helps. If anyone finds my answer unnatural or wrong, please point it out. I'm just another ordinary person trying to improve my Japanese >.>