Bildeten
Bildeten is the simple past tense (Präteritum) of the German verb bilden, used with third-person plural subjects to describe forming, shaping, or constituting something in the past. The verb bilden covers several related senses, including to form a group, to constitute a structure or system, and to educate or train people. In narrative or descriptive text, bildeten appears when referring to past events in which groups or entities were formed or educated.
Usage examples illustrate its range. Sie bildeten eine Koalition aus mehreren Parteien. Die Schüler bildeten eine
Grammatical notes: The corresponding perfect tense is formed with haben and the past participle gebildet, as