Questions & Answers about Mit welchem Freund gehst du heute in die Stadt?
A very literal breakdown would be:
- Mit – with
- welchem – which (dative masculine/neuter)
- Freund – friend
- gehst – (you) go / are going
- du – you
- heute – today
- in – into / to
- die – the (accusative feminine)
- Stadt – city / town
So: With which friend go you today into the city?
Natural English: Which friend are you going into town with today?
Freund is in the dative case here.
Reason: the preposition mit (with) always takes the dative case.
So the phrase mit + (which friend) must be dative:
- Nominative: welcher Freund (which friend – subject)
- Accusative: welchen Freund
- Dative: welchem Freund ✅
That is why it is mit welchem Freund, not mit welcher Freund or mit welchen Freund.