Breakdown of Käytämme aivoja, kun luemme ja kirjoitamme.
lukea
to read
kirjoittaa
to write
kun
when (conjunction)
käyttää
to use
Questions & Answers about Käytämme aivoja, kun luemme ja kirjoitamme.
Why is the word for "brain" (aivoja) in the partitive plural here?
First, the verb käyttää (to use) takes a partitive object because using something is an ongoing action. Second, the Finnish word for "brain" (aivot) is a plural-only word, similar to "scissors" in English. So instead of the singular partitive, we must use the partitive plural form.
How do we know to use the -ja ending for aivoja instead of another plural ending like -ita?
The partitive plural ending depends on the word's stem. Because the stem aivo- ends in the vowel o, it takes the -ja ending. If the stem ended in a front vowel like ö or y, it would take -jä instead.
Where did the "k" go in the verb luemme?
The basic verb is lukea (to read). When we add the "we" ending -mme, it closes the syllable. This triggers consonant gradation, and the strong consonant k disappears entirely, leaving the weak stem lue-.
Why does kirjoitamme only have one "t" when its dictionary form kirjoittaa has two?
This is another example of consonant gradation. Adding the closed -mme ending weakens the strong double tt in the stem to a single weak t.
Do we need the pronoun (we) before the verbs in this sentence?