nachzuweisenden

Nachzuweisenden is the attributive form of the infinitive with zu from the verb nachweisen (to prove, to demonstrate). It functions as a participial adjective meaning “to be proven” or “that must be proven,” and is used primarily in formal German, especially in legal, administrative, and scholarly texts. It describes elements or facts that require demonstration or verification.

As an attributive participle, nachzuweisenden agrees with the noun it modifies in gender, number, and case. Common usages include phrases like die nachzuweisenden Tatsachen (the facts to be proven) or die nachzuweisenden Beweise (the evidence to be proven). In plural, the form typically ends with -en, as in die nachzuweisenden Beweise; in other cases the ending adapts accordingly (e.g., der nachzuweisende Beweis, den nachzuweisenden Beweisen).

In context, nachzuweisenden is often found in regulatory or argumentative statements that specify requirements or conditions tied to proof or demonstration. It conveys a sense of necessity rather than merely describing something that is provable in principle. For example: Der Antrag setzt voraus, dass die nachzuweisenden Tatsachen vorliegen.

Etymologically, the word combines nachweisen (to prove) with the infinitive marker zu, producing the nonfinite construction zu nachweisen, whose attributive form is nachzuweisenden. The term is characteristic of precise, procedural German and is less common in everyday speech, where simpler formulations such as nachweisbar or zu beweisen are more typical.