Japanese phrase
一緒に行かない？ is sho ni i ka na i
Meaning
Do you want to come along?
When to use it
Invites someone to join a trip to the same place. The phrase is casual and friendly, especially in everyday conversations with friends.
Example dialogue
図書館に行くよ。一緒に行かない？ to sho kan ni i ku yo is sho ni i ka na i
I am going to the library. Do you want to come along?
いいね、行く！ i i ne i ku
Sounds good. I will go!