Some nouns are irregular, which means that
they don't follow the rules in table we made earlier in this lesson. This
is a well known problem also in
English, for example "men" and "women".
In both of them the vowel changes in plural, and they don't get any -s in
are the most important irregular ones in Norwegian:
These should just be memorized, but if you don't bother doing
that right now; you can write them down and take a look them
when you need them.
Many nouns end with -er in Norwegian. These are always masculine (except
"sister", of course), and their conjugation is
slightly different in plural: