Breakdown of Bækurnar og pennarnir eru á skrifborðunum undir lömpunum.
vera
to be
bókin
the book
og
and
á
onto / on / in (static location) / on (a day of the week)
penninn
the pen
undir
under
skrifborðið
the desk
lampinn
the lamp
Questions & Answers about Bækurnar og pennarnir eru á skrifborðunum undir lömpunum.
Why do skrifborðunum and lömpunum both end in -unum?
Both words are in the dative case because the prepositions á (on) and undir (under) trigger the dative when describing a fixed location. In the dative case, the plural definite ending (which adds the word the) is -unum for all nouns, regardless of whether they are masculine, feminine, or neuter.
Why does the word for lamp (lampi) change to lömp- in lömpunum?
This happens because of the U-shift rule. The basic dative plural of lampi is lömpum. The u in that -um ending causes the a in the root word to change to an ö. When we add the definite article to make it lömpunum, that ö stays in place.
Why do the subjects bækurnar and pennarnir have different definite endings?
Unlike the dative plural, which uses -unum for everything, the nominative plural uses different definite endings for each gender. Bók (book) is feminine, so its plural adds -nar. Penni (pen) is masculine, so its plural adds -nir.
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