Questions & Answers about Tuhat muurahaista asuu keossa.
Since there are a thousand ants, why is the verb asuu in the singular rather than the plural asuvat?
This is a key rule in Finnish! When the subject of a sentence is a number (other than one) followed by a noun, the verb must be in the third-person singular (asuu). Even though there are many ants, the grammatical subject acts like a single block or amount, so the verb stays singular.
Why is muurahaista in the partitive singular when we are talking about multiple ants?
In Finnish, all numbers greater than one require the word that follows them to be in the partitive singular. So, the number tuhat forces the dictionary form muurahainen to become the partitive muurahaista. You don't use a plural case here.
What is the base form of the word keossa (in the mound), and where did the 'k' go?
The basic dictionary form is keko (mound or anthill). When you add the inessive case ending -ssa (meaning 'in'), it closes the final syllable. This triggers a consonant gradation rule where a single 'k' disappears. Therefore, keko changes its stem to keo-, resulting in keossa.
The English translation says 'A thousand'. Why isn't there a word for 'a' or 'one' like yksi tuhat?