Buick century 1998 power window passenger side will not work , nothing work mechinal , all other windows work

You most likely have a bad window lift motor or MORE LIKELY a broken window regulator. The door must be disassembled to replace either or both of these.
It could also be a bad window control switch or a broken wire in the door-jamb area. Please note that EITHER of the switches for the passenger window (the driver's control switch or the one on the passenger door) can cause BOTH of the switches to not work to move the passenger window. In this case, electrical diagnosis must be performed to locate the cause of the problem.