Breakdown of Die Katze schläft auf dem Bett.
die Katze
the cat
schlafen
to sleep
auf
on / to (down/up to a level)
das Bett
the bed
Questions & Answers about Die Katze schläft auf dem Bett.
Why is it auf dem Bett instead of auf das Bett?
The preposition auf is a "two-way" preposition. Because the cat is staying in a fixed location (answering the question "Where?" or Wo?), we use the dative case. The noun Bett is neuter (das Bett), and in the dative case, das changes to dem.
Why does the verb schläft have an umlaut (ä)?
The dictionary form of the verb is schlafen (to sleep). It is an irregular verb that changes its stem vowel from a to ä when used with er (he), sie (she), or es (it). Since die Katze is a feminine noun (she), the verb becomes schläft.
Why does this translate to "is sleeping" if the German word is just schläft?
German doesn't have a continuous "-ing" tense like English does. The sentence Die Katze schläft can mean both "The cat sleeps" (a regular habit) and "The cat is sleeping" (happening right now). You simply choose the translation that makes the most sense for the situation.
When do I use auf for "on" instead of another word like an?