täydentäneet

Täydentäneet is a Finnish verb form derived from täydentää, meaning to complete or to supplement. It denotes an action that has been completed by a plural subject and is most commonly translated as “they have supplemented” or “the ones who have supplemented.” Grammatically, täydentäneet is the third-person plural perfect indicative form of täydentää. In finite use it appears with an auxiliary, for example: he ovat täydentäneet tiedot (they have supplemented the information).

Täydentäneet also functions as a past active participle in non-finite clauses or noun phrases, often meaning “the data/information that have been supplemented.” In such use it modifies a noun, as in täydentäneet tiedot, meaning “the supplemented data.” This participial form can be compared with the singular counterpart täydentänyt, which marks a singular subject in the perfect.

Usage notes and related forms: täydennys and täydennöstäminen are related concepts focusing on supplementation or completion. The act of supplementing is expressed with täydentää in its various forms, while the noun form täydentäminen refers to the act itself. The word is common in formal or administrative Finnish, such as reports, datasets, and procedural contexts where information is added or corrected.

In summary, täydentäneet is a key Finnish form signaling completed supplementation by a plural agent, usable both as a finite perfect verb and as a non-finite participial modifier in descriptive phrases.