Muodostuisisi

Muodostuisisi is a Finnish verb form that would be derived from the intransitive verb muodostua, meaning “to be formed” or “to arise.” In standard Finnish, muodostua forms a conditional mood in a way that yields forms such as muodostuisisi, muodostuisisit, and muodostuisi depending on person and number. However, the exact inflection muodostuisisi is not widely attested in modern grammars and is not considered a common or canonical form in contemporary usage.

Most authoritative sources present the closely related, standard conditional forms for muodostua as muodostuisisin (I would be formed), muodostuisisit (you would be formed), and muodostuisi (he/she/it would be formed), with other persons following the same pattern. If muodostuisisi appears in a text or teaching resource, it is typically interpreted as a nonstandard, dialectal, or instructional variant illustrating the conditional suffix -isi- combined with a second-person ending, or it may be a straightforward misspelling.

Usage in language materials may use unconventional spellings to demonstrate Finnish verb conjugation patterns, but in normal written Finnish, readers should rely on the standard forms described above. For precise grammar and accepted forms, consult comprehensive Finnish grammars or dictionaries. See also muodostua, Finnish verb conjugation, and Finnish conditional mood.