can a player pass 1 time at all, or when in stalemate?
No.
You must make a legal move if at all possible, and if you or your opponent are in stalemate the game is a draw.
There is a real art to putting your opponent into zugzwang when it is to your advantage -- the compulsion to move when every possible move is detrimental can often decide the outcome of a game.
can a player pass 1 time at all, or when in stalemate?