guter Wein ein guter Wein warme Milch kaltes Bier ein kaltes Bier frische
Obstsäfte guten Wein warme Milch kaltes Bier ein kaltes Bier frische
Obstsäfte gutem Wein warmer Milch kaltem Bier frischen
Obstsäften ***guten
Weines*** warmer Milch ***kalten
Bieres*** frischer
Obstsäfte
Compare the "der"-words and the "ein"-words." Mostly, their endings are identical, but the "der"-words provide a bit more information about case, because the masculine nominative and neuter nominative and accusative "ein"-words lack endings. This slight distinctive edge makes the "der"-word endings favored in German: they are the "strong" endings.
If a "der"-word ending does not precede the noun, the adjective takes it on: it uses a "strong" or "der"-word ending to provide as much information as possible about case, gender and number.
Notice that the genitive masculine and neuter "strong" endings in the chart *** are not identical with the "der"-word ending. This is easy to remember when you understand the logic of it: the "strong" ending is indeed present, as a suffix on the noun itself (Weines,Bieres) . Therefore, German uses the "weak" ending as is normal when the "strong" ending is already present.
The following flow chart illustrates when to use "strong" and when to use "weak" adjective endings.
Practice using "strong" adjective endings.
More practice with "strong" endings.
©A. Campitelli; Greensboro, NC 1999-2001