Two-way prepositions
Some take accusative, some dative, some genitive.
| Preposition | Meaning | Acc (motion) | Dat (location) |
|---|---|---|---|
| in | in/into | into → acc | inside → dat |
| auf | on/onto | onto → acc | on → dat |
| an | at/to | to → acc | at → dat |
| unter | under | under → acc | under → dat |
in, an, auf, über, unter ... take accusative for motion, dative for location.
in dem → im, in das → ins, zu dem → zum.