täydentääkseen

Täydentääkseen is the infinitive form of purpose (infinitive of purpose) of the Finnish verb täydentää, meaning to supplement or to complete. It is a non-finite verb form used to express the aim or goal of an action in the main clause. The form is created by attaching the suffix -akseen (or -äkseen in phonological contexts) to the verb stem; through this process täydentää becomes täydentääkseen. This construction is common in formal or written Finnish and translates to English as “in order to complete” or “to complete.”

Usage and function:

The purpose-infinitive expresses why the action of the main verb is performed. In a sentence using this form, the subject of the infinitive is usually the same as the subject of the main clause. When a different subject is intended, alternative Finnish constructions such as clauses with jotta or other syntactic rearrangements are typically preferred. The form is most frequent in official, academic, or technical writing and can seem archaic or stylistically marked in everyday speech.

Example:

Tutkimustuloksia täydentääkseen analyytikot keräsivät lisätietoja. (In order to complete the study results, the analysts collected additional information.)

Related forms:

Finnish also employs other non-finite forms for aspect and modality, and the simple present infinitive täydennetä (to supplement/complete) contrasts with the purpose-infinitive täydentääkseen in function and nuance.