Breakdown of Opiskelijan aktiivisuus oli niin suurta, että päätös oli helppo.
olla
to be
opiskelija
student
helppo
easy
niin
so
että
that (conjunction)
päätös
decision
suuri
large, great
aktiivisuus
the activity / the activeness
Questions & Answers about Opiskelijan aktiivisuus oli niin suurta, että päätös oli helppo.
Why is suurta in the partitive case, while helppo is in the nominative case?
This sentence perfectly contrasts how we describe uncountable versus countable nouns. Aktiivisuus (activity) is an abstract, uncountable noun, so the adjective describing it must be in the partitive case (suurta). However, päätös (decision) is a countable noun, so its adjective stays in the nominative case (helppo).
How is the word aktiivisuus formed?
It is formed by adding the suffix -uus (or -yys) to the adjective aktiivinen (active). This suffix works a lot like the English suffixes '-ty' or '-ness', turning adjectives into abstract nouns (active becomes activity).
Could I use the nominative suuri instead of suurta here?
It would not sound natural. If you used the nominative suuri, it would imply that aktiivisuus is a single, distinct countable event rather than a general, abstract quality or ongoing behavior.
How could I rewrite this sentence to use nojalla (on the basis of) from this current lesson?
You could combine the two parts of the sentence by saying: Opiskelijan aktiivisuuden nojalla päätös oli helppo (On the basis of the student's activity, the decision was easy). Remember that nojalla requires the genitive case, which is why aktiivisuus changes to aktiivisuuden.
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