Questions & Answers about W lipcu biegam rano w parku.
Because after w meaning “in” (inside / during) we usually need the locative case, not the basic dictionary (nominative) form.
- Dictionary form: lipiec (July) – nominative
- Locative singular: lipcu
The pattern “w + locative” is used for:
- being in a place: w parku (in the park), w domu (in the house)
- being in a time period: w lipcu (in July), w poniedziałek is an exception – it uses accusative
So w lipiec is ungrammatical for “in July”. You must say w lipcu.