Breakdown of Viljelijän, jonka traktori on korjattu, on määrä niittää vehnä.
olla
to be
korjata
to fix
joka
who / which (relative pronoun)
traktori
tractor
Questions & Answers about Viljelijän, jonka traktori on korjattu, on määrä niittää vehnä.
Why is viljelijän in the genitive case here?
It acts as the subject for the on määrä (is scheduled to) construction. This structure always requires the subject to be in the genitive case, followed by on määrä and the first infinitive, which here is niittää (to reap).
Does the relative clause jonka traktori on korjattu have to split the main grammatical structure like that?
Yes. A relative clause needs to directly follow the word it modifies. Because it modifies viljelijän, it must sit right after it, even though it temporarily interrupts the connection between the genitive subject and its verb phrase on määrä.
Why is the object vehnä in the basic nominative form instead of the genitive-accusative vehnän?
Expressions of intention like on määrä and on tarkoitus behave like necessity verbs (such as täytyy). When the main sentence structure requires a genitive subject, the total object of the attached infinitive drops its genitive ending and appears in the nominative case.
What nuance does the passive form on korjattu add to the sentence?
on korjattu is the passive perfect tense, meaning has been fixed. Because the Finnish passive always implies a human agent, it emphasizes that someone (like a mechanic) specifically did the work to repair the tractor, rather than it just magically being in a working state.