A word "neither" is a first variant of the word "or".Look at the explanation with an example: You can use it either in the sentences when you want to spot for two variants of a future action, or in a case when you need to spot for two groups of things.
formula: .....either....,or........!
P.S. I've explained it so primitive because I don't speak your native language and I can't find the more easer words.
Good luck.