Groepeerde
Groepeerde is a Dutch verb form that marks the past tense of the verb groeperen, meaning to group or cluster. It is the simple past tense used with a singular subject, as in De onderzoeker groepeerde de deelnemers in drie categorieën. The corresponding present tense is groepeert, and the past participle is gegroepeerd, which is used in perfect tenses (de gegevens zijn gegroepeerd).
Etymology and form: groeperen combines the base group concept with the -eren verb suffix, forming a regular
Usage context: groepeerde commonly appears in writing about data analysis, research methods, sociology, and project documentation,
Relation to related forms: while groepeerde refers to a past action by a single subject, groepeerden would