neither ... nor, either ... or

neither means "not one and not the other".
Tidak satu pun dan tidak ada yang lain.

either means "any one of two".
Salah satu dari dua hal.

neither ... nor ...

1. He neither writes nor phones.
2. Neither I nor you came to Galang's birthday party.

either ... or ... 

1. You can have either orange juice or ice tea.
2. You must either go at once ow wait till tomorrow.