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Questions & Answers about En ymmärrä lukuja.
Why is the object lukuja in the partitive case?
There are actually two reasons here! First, this is a negative sentence (en ymmärrä), and the object of a negative sentence is always in the partitive case. Second, the verb ymmärtää (to understand) is a partitive verb, meaning its object takes the partitive even in positive sentences.
How do we get the partitive plural form lukuja from the basic word luku?
The base word is luku (chapter). For words ending in the vowels -o, -ö, -u, or -y, the partitive plural ending is -ja or -jä. Because luku contains the back vowel u, vowel harmony means we use -ja, simply attaching it to the end of the word to get lukuja.
Why doesn't the k in lukuja change or disappear due to consonant gradation?
Consonant gradation (like a k disappearing) typically happens when an ending closes a syllable by adding a final consonant. The ending -ja leaves the syllable open (lu-ku-ja), so the k stays in its strong form.
Why does the verb ymmärrä have a double r when the basic dictionary verb is ymmärtää?