Questions & Answers about Nie chcemy wypadków w firmie.
Why do we use the genitive case for wypadków?
The verb is negative (nie chcemy). In Polish, when you negate a verb, the direct object usually switches from the accusative case to the genitive case. Also, the verb chcieć (to want) often takes the genitive case anyway when referring to abstract things.
How do we form the genitive plural for wypadek?
Wypadek is a masculine noun. To make the genitive plural for most masculine nouns, you simply add the ending -ów.
What happened to the e in wypadek when it changed to wypadków?
This is a common pattern called the mobile e. In many words ending in -ek, that final e disappears when you add a grammatical ending. So the base word wypadek shrinks to wypadk- before we attach the -ów ending.
Why does firma change to firmie here?
We are talking about a location (in the company), so the preposition w forces the noun into the locative case. For feminine nouns ending in -a like firma, the locative ending is usually -ie.