In every one of the 4 cases you have one corner/edge pair connected.
Put them in the spot where they belong and hold the cube so that the 'correct' corner is either ULF or URF and the edge in the UF spot is wrong.
This edge in the UF spot now has to go either to UB (2 cases) or, depending on where the 'correct' edge is, to UL/UR (the other 2 cases).
Hope this helped.