Breakdown of Niin autot kuin laivatkin käyttävät biokaasua.
auto
car
laiva
ship
käyttää
to use
kuin
than / before (in 'ennen kuin') / like / as
Questions & Answers about Niin autot kuin laivatkin käyttävät biokaasua.
What is the exact formula for the 'both... and' structure used here?
The structure is niin + [first item] + kuin + [second item] + -kin. It is important to remember to attach the -kin (also) suffix to the second item (laivatkin). Without it, the structure is grammatically incomplete. It translates smoothly to 'both... and' or 'as well as'.
Since this structure joins two subjects, does the verb käyttävät have to be plural?
Yes. When niin ... kuin ... -kin joins subjects, standard Finnish treats the combined subject as plural. Even if the sentence used singular nouns (e.g., Niin auto kuin laivakin... - Both the car and the ship...), the verb would still take the plural form käyttävät.
Why is biokaasua in the partitive case instead of the accusative?
While the verb käyttää (to use) can take an accusative object when you use up a specific, countable item, biokaasu (biogas) is an uncountable mass noun in this context. The vehicles are using biogas in a general, continuous sense, so the object must be in the partitive case.
Is the niin ... kuin ... -kin structure common in everyday spoken Finnish?