demonstriert

Demonstriziert is the present tense third-person singular form and the past participle of the German verb demonstrieren. In finite form it means “he/she/it demonstrates.” The past participle demonstriert is used with the auxiliary haben to form the present perfect, as in “er hat demonstriert.” The verb demonstrieren originates from the French démontrer (to demonstrate, prove), via Latin demonstrare, and carries the core sense of showing, illustrating, or proving something.

In everyday usage demonstrieren can denote two main senses. First, to show or illustrate something by demonstration, experiment, or explanation: “Der Forscher demonstriert die Funktionsweise des Geräts.” This sense is common in science, education, and media. Second, to participate in or organize a public protest: “Sie demonstrieren gegen die neue Gesetzgebung.” The noun Demonstration covers both meanings, with the intended sense typically clarified by context or accompanying words.

Grammatical notes: Present tense forms include ich demonstriere, du demonstrierst, er demonstriert, wir demonstrieren, ihr demonstriert, sie demonstrieren. Präteritum forms are ich demonstrierte, du demonstriertest, er demonstrierte, wir demonstrierten, ihr demonstriertet, sie demonstrierten. The past participle is demonstrated here as demonstriert, used with haben to form the perfect: “Sie hat demonstriert.” Future forms use werden: “ich werde demonstrieren.” In attributive position, the past participle can function as an adjective, for example “demonstriertes Verhalten” meaning behavior that has been demonstrated.