päättyisi

Päättyisi is a Finnish verb form that comes from the verb päättyä, meaning to end or come to an end. It is used to express a hypothetical or contingent ending in the present conditional mood.

Morphology and usage: The form is built from the verb stem päätty- with the conditional suffix -isi, and it is the third-person singular present conditional. This means it translates roughly to “it would end” or “he/she/it would end” when referring to a singular subject. It commonly appears in conditional clauses introduced by if (jos) or in contexts describing potential outcomes, rather than stating a definite, factual ending.

Examples:

- Jos peli päättyisi tasan, siirtyisimme jatkoajalle. (If the game ended in a draw, we would go into overtime.)

- Päivä päättyisi auringonlaskuun, jos ei sattuisi lisää tapahtumia. (The day would end at sunset if no further events occurred.)

Contrast and related forms: In Finnish, the plural form would be päättyisivät (they would end). The present conditional form differs from past or perfective forms such as päättyisi in other persons or numbers, and from phrases using the verb päättyä in other moods or tenses. The conditional mood, including päättyisi, is commonly used to discuss hypothetical futures, polite suggestions, or uncertain outcomes within a narrative or explanatory context.

In summary, päättyisi is the present conditional singular form of päättyä, used to express hypothetical endings for a singular subject, and it commonly appears in conditional clauses to discuss what would happen if a situation ended in a certain way.