Breakdown of Me kärsimme kuumuudesta koko vuorokauden.
me
we
koko
whole
kärsiä
to suffer
vuorokausi
twenty-four hours
Questions & Answers about Me kärsimme kuumuudesta koko vuorokauden.
Why is vuorokauden in the genitive-looking accusative case here?
This is the accusative of time. Time durations that tell us how long an action lasts follow the same grammar rules as object cases. Because the sentence has a normal subject (me) and the suffering applies to that whole duration, the time phrase takes the genitive-accusative -n ending.
Why does 'heat' take the elative ending in kuumuudesta?
The verb kärsiä (to suffer) requires the thing you are suffering from to be in the elative case (-sta or -stä). This is a fixed verb rule, known as a rection, that you just have to memorize with the verb.
How does the basic noun for heat change into the stem kuumuude-?
The base word is kuumuus (heat). Finnish words ending in -uus or -yys change their final -s to -de- when you add most case endings. Therefore, kuumuus becomes the stem kuumuude- before adding the -sta ending.
Why doesn't the word koko get an -n ending to match vuorokauden?
The word koko (whole or entire) is an exception among Finnish adjectives because it is indeclinable. This means it is frozen and never changes its form to match the noun it describes, no matter what case the noun is in.