untersuchenden
Untersuchenden is a form derived from the German verb untersuchen, meaning to investigate or examine. In standard usage, untersuchen supplies the present participle untersuchend, which functions as an adjective or verb in participial phrases. The form untersuchenden is an inflected ending that appears in specific grammatical cases when the participle acts as an attributive adjective, or as a declined adjective after a definite article.
As an attributive adjective, untersuchend appears in various case forms depending on gender and number. For
Untersuchenden can also be used as a noun when capitalized, referring to the person who conducts investigations:
In summary, untersuchenden is a declined participial adjective form related to untersuchen, and it may also