sisaruksilla

Sisaruksilla is the adessive plural form of the Finnish noun sisarus, meaning sibling. The form is used to indicate location or association with the siblings, and it frequently appears in clauses with the verb olla (to have), where it marks the possessor rather than the object. In English, it can correspond to “the siblings’ …” or, depending on context, “at the siblings’ place.”

Common usage centers on possession. For example, in a sentence like Sisaruksilla on kolme lasta, the group of siblings is the possessor of three children. Another frequent usage conveys shared property or arrangements among siblings, as in Sisaruksilla on yhteinen huone (The siblings have a shared room). The form can also indicate location related to the group, such as a place belonging to or associated with the siblings.

Formation and grammar notes. Sisaruksilla is formed from the plural nominative sisarukset plus the adessive suffix -lla, yielding sisaruksilla. It is the plural, not a singular or singular possessive form, and it is used with verbs to express possession or location involving more than one sibling. The adessive case broadly covers on/at/with, so context often determines whether the meaning centers on possession or spatial relation.

See also: Finnish grammar, adessive case, possession constructions in Finnish.