qualifizierten
Qualifizierten is a declined German form that can serve two main grammatical functions: it is an inflected form of the adjective qualifiziert (meaning qualified or skilled), and it is also the simple past tense form of the verb qualifizieren (to qualify) in the third person plural.
As an attributive or predicative adjective, qualifiziert describes people or things that have the necessary qualifications
As a finite verb form, qualifizierten is the simple past (Präteritum) for the third-person plural: sie qualifizierten,
Nominalized form: Qualifizierte, with a capital Q, can function as a noun meaning “the qualified ones” (plural).
Etymology: both branches derive from qualifizieren, built on the noun Qualifikation, themselves tracing to late Germanic