Breakdown of Algerna växer dubbelt så snabbt i dessa akvarier.
snabb
fast
i
in
så
so
växa
to grow
dessa
these (plural)
akvariet
the aquarium
dubbelt
twice
algen
the alga
Questions & Answers about Algerna växer dubbelt så snabbt i dessa akvarier.
The lesson mentions using som for comparisons. Why is there no som after snabbt in this sentence?
You only need som (as) when you explicitly state what you are comparing the subject to, like dubbelt så snabbt som i havet (twice as fast as in the ocean). Because the thing we are comparing the aquariums to is already implied by context, som is left out.
Why is it snabbt with a -t instead of just snabb?
Here, the word describes how the algae grow (växer), which makes it an adverb. In Swedish, adverbs are formed by adding a -t to the adjective. The multiplier dubbelt så doesn't change this rule; it just modifies the adverb.
Why is the noun in the indefinite plural (akvarier) rather than the definite plural (akvarierna)?
Because it follows the formal demonstrative word dessa (these). A strict rule in Swedish grammar is that denna, detta, and dessa must be followed by a noun in the indefinite form. If the sentence used the more everyday de här instead, you would need the definite form: de här akvarierna.
Akvarier looks like an unusual plural. What is the singular form?
The singular is ett akvarium. Many loanwords ending in -ium in Swedish are neuter (ett-words). To form the plural, you drop the -um and add -er, giving you akvarier (aquariums).
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