säännölliseen

Säännölliseen is the illative singular form of the Finnish adjective säännöllinen, meaning regular, systematic, or habitual. In Finnish, adjectives agree with the nouns they modify in number and case, so illative singular occurs with a noun in the illative case, often indicating movement toward or into something or a purpose. Therefore säännölliseen is used when describing a noun in contexts involving entering or adopting a regular state or practice.

Common uses include phrases that express adopting or pursuing a regular routine, regimen, or habit. For example, osallistua säännölliseen harjoitteluun means to participate in regular training, siirtyä säännölliseen ruokavalioon means to transition to a regular diet, and organisaatio luo säännölliseen päivärytmiin tähtäävän ohjelman refers to a program aimed at a regular daily rhythm. These constructions illustrate how the illative form links the adjective to actions or targets associated with regularity.

Säännölliseen forms are part of a full set of inflected forms for the adjective. The base form is säännöllinen; related forms include nominative säännöllinen, genitive säännöllisen, partitive säännöllistä, and illative plural säännöllisiin. An adverbial form exists as säännöllisesti, meaning regularly. The term derives from sääntö, meaning rule, with the adjectival suffix -llinen indicating characteristic of or relating to rules or regularity.

In summary, säännölliseen is a grammatical inflection used to modify a noun in illative case to express moving toward or adopting a regular state or practice, and it is commonly found in health, education, and workplace contexts.