Questions & Answers about Raketit lentävät avaruuteen.
Since this lesson is about the genitive plural, why isn't 'raketit' in the genitive plural form 'rakettien'?
Raketit is the subject of the sentence (the things doing the flying), so it needs to be in the basic nominative plural form (ending in -t). You would use the genitive plural rakettien to show ownership, like in rakettien osat (the parts of the rockets).
Why does 'lentävät' have the strong 'nt' when 'I fly' is 'lennän' with a weak 'nn'?
For Type 1 verbs like lentää, the third-person forms (hän and he/ne) always use the strong consonant grade. While the other forms weaken (like minä lennän or me lennämme), the third-person plural goes back to the strong nt to make lentävät.
How is 'avaruuteen' formed from the dictionary word 'avaruus' (space)?
Words ending in -uus or -yys change their stem to -uute- or -yyte- before you add most case endings. So, avaruus becomes the stem avaruute-. To say "into" space, we add the illative ending -en, creating avaruuteen.
Why do we use the 'into' case (avaruuteen) instead of the 'onto' case?
Finnish treats space as a three-dimensional environment, not a flat surface. Therefore, you fly into it using the illative case, just like you would go into a building or a forest.
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