Questions & Answers about Razmišljam o davanju krvi.
Because the preposition o normally requires the locative case when it means about / concerning.
- base form: davanje
- locative singular: davanju
So:
- Razmišljam o davanju krvi. = I’m thinking about donating blood.
This is a very common pattern in Serbian:
- pričam o poslu = I’m talking about work
- mislim o tome = I’m thinking about that
- razmišljam o putovanju = I’m thinking about traveling / a trip
So the key point is: o + locative.
Davanje is a verbal noun. It comes from the verb davati (to give, imperfective) and turns the action into a noun:
- davati = to give
- davanje = giving
In this sentence, davanje krvi literally means the giving of blood, which in natural English is donating blood or blood donation.
Serbian often uses this kind of noun where English might prefer an -ing form:
- čitanje = reading
- pisanje = writing
- učenje = studying / learning
- davanje krvi = donating blood