Breakdown of Ein roter Bauklotz liegt unter dem Tisch.
Questions & Answers about Ein roter Bauklotz liegt unter dem Tisch.
Because Bauklotz is the subject of the sentence, so it is in the nominative case.
In masculine nominative singular, after ein- words like ein, the adjective takes -er:
- ein roter Bauklotz
This is part of German adjective endings. A useful comparison:
- ein roter Bauklotz = nominative masculine
- ich sehe einen roten Bauklotz = accusative masculine
So roter is correct here because the block is the thing doing the “lying.”
German often prefers a position verb where English might simply use is.
- liegen = to lie, to be lying
- stehen = to stand
- sitzen = to sit
So:
- Der Bauklotz liegt unter dem Tisch.
sounds more natural in German than using ist.
You can say ist unter dem Tisch in some contexts, but liegt is more specific and idiomatic when an object is resting horizontally or simply located somewhere.