Kohustuslikeks

Kohustuslikeks is the Estonian translative plural form of the adjective kohustuslik, meaning mandatory or obligatory. It is used to express a change of state into a category that is considered mandatory, typically in formal or regulatory contexts.

Morphology and usage: The base word is kohustuslik. The translative case marks becoming or turning into something, and the plural form kohustuslikeks is used with a plural subject. Common predicates combine an auxiliary verb of change, such as muutuma or muutunud, with kohustuslikeks. For example, the sentence Nõuded on muutunud kohustuslikeks means "The requirements have become mandatory." The singular counterpart is kohustuslikuks, used with singular subjects (ta muutus kohustuslikuks).

Contexts and nuance: Kohustuslikeks appears most often in formal writing, policy documents, education, and legal or administrative discourse. It conveys that certain items, rules, or obligations have been designated as compulsory for a group or situation. In everyday speech, other expressions for obligation may be more common, but kohustuslikuks remains standard in official texts.

Examples:

- Nõuded on muutunud kohustuslikeks. (The requirements have become mandatory.)

- Need koolitused võivad muutuda kohustuslikeks. (These trainings may become mandatory.)

- Dokumentide kontroll on muutumas kohustuslikuks. (Document verification is becoming mandatory.)

Etymology and related terms: Kohustuslik is formed from kohustus (duty, obligation) plus the suffix -lik (forming adjectives). The translative suffix -eks marks a change of state, with kohustuslikuks used in singular and kohustuslikeks in plural contexts. Related terms include the base kohustuslik and the concept of translative case in Estonian grammar.