"Nasze lody będą zrobione z mleka i owoców."

Translation: Our ice cream will be made from milk and fruit.

[hiyaevelyn]

Why is it not "z mlekiem?"

[immery]

z mlekiem would mean with milk
z mleka means from milk

[hiyaevelyn]

Oh, my; I didn't know they were declined differently. Thank you! Can you help me with another example, please? Is this correct: z Polski = from Poland = with Poland?

[Vengir]

z Polski – from Poland
z Polską – with Poland

You use genitive to mark the origin, and instrumental to mark companions.

[hiyaevelyn]

Oy. Okay, thank you! Gotta work on those cases.

[PolvandenBleek]

Has it been explained anywhere when to use 'być' and when to use 'zostać' for the passive and if there is a difference?

[Jellei]

Well, they literally translate to will be/will become, but then in English 'will become' is a lot less probable than in Polish... I guess that 'zostaną zrobione' focuses on the moment of them being made more? In such a sentence as this one, I think they mean the same.

[Kendra800150]

In discussions of other examples, it is stated that zostać is (normatively) used with perfective verbs and być with imperfective, but this sentence breaks that rule.

[obado]

Hmm - it rejected ice-cream with a hyphen

[Jellei]

Such things as hyphens aren't marked, so either something else was wrong, or there was a bug...

[Walkinthedog]

Nie smietany?

[mark.boats]

From what I've read on the passive voice zostać is used for perfective verbs, but this sentence uses będą rather than zostaną with the perfective participle of zrobić...

Is there a grammatical, stylistic, or other reason that the sentance isn't "Nasze lody zostaną zrobione z mleka i owoców"? Or are they equally valid?

[alik1989]

The use of być instead of zostać is usually a sign that this is informal speech.

[mark.boats]

Bardzo dziękuję... :)

[zickovski]

I thought it should be: will be made of' not 'from'. But I live in Liverpool, England...

[Jellei]

That is also accepted.