[m4x30000]

Hi !

I would need some help explaining a verb form which I did not see anywhere, I got a message from a friend with the following : "明日から東京へ行くことになりそうです！" -- What bugs me is the "ことになりそうです！", I've seen on a website the form "koto ni shimasu/suru", but haven't found anything for "koto ni nari" ? Can someone please explain what is this used for, or send me a reference ??

thanks for any help !