Breakdown of Dykkeren ser en koral vokse på havbunden.
en
a / an (common)
se
to see / to look at
på
on / at / in (a language) / of (after nouns like end or start)
vokse
to grow
Questions & Answers about Dykkeren ser en koral vokse på havbunden.
Since the lesson is about existential clauses, how would we rewrite the second half of this sentence to use a der construction?
You could say Dykkeren ser, at der vokser en koral på havbunden (The diver sees that there is a coral growing on the seabed). Because en koral is indefinite, it perfectly satisfies the definiteness effect, allowing us to use it as the logical subject in an existential sentence with the verb vokser.
Why is it just vokse instead of at vokse?
Verbs of perception, like at se (to see), at høre (to hear), and at mærke (to feel), take a bare infinitive (without at) when describing an action you witness someone or something else doing. Here, the diver sees the coral do the growing, so we drop the at and just use the bare infinitive vokse.
If the diver was looking at a specific, known coral, could we still use this exact sentence structure?
Yes, you could say Dykkeren ser koralen vokse på havbunden. The definiteness effect strictly restricts existential (der) clauses to indefinite subjects. But because this sentence uses a direct object + infinitive structure rather than a der-clause, the object can be either definite or indefinite without breaking any rules.
Why is havbunden in the definite form here?
Havbunden (the seabed) is a compound of hav (sea or ocean) and bund (bottom). We use the definite suffix (-en) here just as we say "on the seabed" or "on the ocean floor" in English, referring to the specific environment where the diver is operating rather than a random, unspecified bottom.