The steps are defined by the laws of Germany, of the country the other person is from, and of the county in which the wedding will be held. You should consult experts in those countries to find out the precise steps to take.
No, Mormons marry ONLY Mormons
ts comepletly harram for a Muslim girl to marry a non beilever
of course they can.
If she is Muslim and you both are in Oman, then the answer is NO, she will be committed with adultery if she married a non-muslim person, if you live in a non-muslim community, you may marry a civilian marriage.
Of course!
Yes, but he or she has to convert.
Yes.
Yes you can marry anyone you want if you really love them
The non-Catholic would need to have his marriage annulled by the church before they are free to marry, as the catholic church recognizes the validity of the Presbyterian marriage. If annulment is approved, he does not need to join the Catholic Church, but must be willing to consent to her oath to bring up any children as catholic
Maybe, if it's a non-denominational synagogue.
Yep
No.