Questions & Answers about We wtorek mam mniej pracy niż w poniedziałek.
Polish uses we instead of w before some awkward consonant clusters, especially when pronunciation would be difficult.
So:
- we wtorek = correct
- w wtorek = not standard
The cluster w + wt- is hard to say smoothly, so Polish inserts e.
You see the same idea in some other phrases, for example:
- we Wrocławiu
- we Francji
So here, we wtorek is simply the normal form.
They are in the accusative.
With days of the week, Polish commonly uses:
- w/we + accusative = on Monday / on Tuesday / on Friday
So:
- we wtorek = on Tuesday
- w poniedziałek = on Monday
For these masculine inanimate nouns, the accusative looks the same as the nominative, so the form does not visibly change:
- nominative: wtorek
accusative: wtorek
- nominative: poniedziałek
- accusative: poniedziałek
That is why the words look unchanged.