How the word "auf" is translated into English
Das Buch liegt auf dem Tisch.
[das ˈbuːx ˈliːkt ˈaʊ̯f ˈdeːm ˈtɪʃ.]
The book is on the table.
Setz dich nicht auf den Boden!
[ˈzɛts ˈdɪç ˈnɪçt ˈaʊ̯f ˈdeːn ˈboːdn̩!]
Don't sit on the floor!
Ist die Katze auf dem Dach?
[ˈɪst ˈdiː ˈkatsə ˈaʊ̯f ˈdeːm ˈdax?]
Is the cat on the roof?
"auf" is in the lesson "Prepositions" (Level 36), along with 12 other useful words. LinDuo has 180 topic lessons like this one, 2,375 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.