Breakdown of Zawsze czytam książkę przed snem.
książka
book
czytać
to read
zawsze
always
przed
before (in time)
Questions & Answers about Zawsze czytam książkę przed snem.
Why is the word for sleep "snem" here instead of "sen"?
Because the preposition przed (meaning "before") requires the following noun to take the Instrumental case. The base dictionary word for sleep is sen, and its Instrumental form is snem.
Wait, if the base word is "sen", why is the Instrumental form "snem" and not "senem"?
The noun sen has a "fleeting e". This means the letter 'e' in the base word drops out when we add grammatical endings. Instead of "senem", the 'e' disappears, and we just add the Instrumental ending -em to the remaining letters, giving us snem.
Does the preposition "przed" always mean "before"?
It means "before" when we use it to talk about time, like przed snem (before sleep). However, when talking about physical space, przed means "in front of". For example, przed domem means "in front of the house". In both of these common situations, it requires the noun to be in the Instrumental case.
Just as a refresher, why is it "książkę" and not "książka"?
The book is the direct object of the verb, meaning it is the thing being read. This requires the Accusative case. For feminine nouns ending in -a like książka, you drop the -a and add -ę to make it książkę.