I know the ending is the same in both nominative and accusative for feminine, neuter and plural, but I'd like to know which case I'm using because the ending changes in the masculine. For example:
- If I wish someone Guten Morgen!, I think I'm using the accusative masculine because it's a wish.
- If I write a sign in my food stand it would say Kaltes Bier!, which I think is the nominative neuter.
- If I put up a sign after I mop the floor, would it say Nasser Boden (nominative masculine) or Nassen Boden (accusative masculine)?