stellst

Stellst is the second-person singular present tense form of the German verb stellen (to place, to put, to set). It is used when the subject is the informal you (du) and refers to placing something in a particular position or setting something up, either physically or metaphorically.

Stellen is a regular verb. The present tense forms are: ich stelle, du stellst, er/sie/es stellt, wir stellen, ihr stellt, Sie stellen. The stem is stell-, and the du form adds the ending -st. With separable prefixes, the prefix is typically separated in the present tense: du stellst die Lampe auf das Regal (you put the lamp on the shelf).

Common uses include physical placement and positioning, such as: Du stellst den Stuhl an die Wand. The verb also forms phrases with fixed meanings, such as: eine Frage stellen (to pose a question) → Du stellst mir eine Frage. In the idiom in Frage stellen, Du stellst diese Behauptung in Frage (you question this claim).

Usage notes and variants: stellst is tied to the informal address; the corresponding formal form is Sie stellen. The verb ferner appears in many prefixed forms that shift meaning, such as aufstellen (to set up), einstellen (to adjust or hire), einstellen (to stop or silence in some contexts), umstellen (to rearrange), and vorstellen (to introduce or imagine). In reflexive constructions,stellen can appear with sich vorstellen (to introduce oneself or to imagine).

Etymology and scope: stellen traces to long-standing Germanic roots connected with placing or establishing objects, positions, or statements. Beyond its literal sense, it serves as a productive verb in figurative expressions that involve positioning, presenting, or asserting something.