Breakdown of Jeste li pitali agenciju za kvadraturu?
biti
to be (sam, si, je)
li
question particle
pitati
to ask
za
for (+ accusative)
Questions & Answers about Jeste li pitali agenciju za kvadraturu?
Why do we use za kvadraturu here instead of o kvadraturi to mean "about the square footage"?
While o + locative translates directly to "about", the verb pitati (to ask) frequently pairs with za + accusative when you are inquiring after a specific piece of information, a price, or someone's health. You are essentially asking for that data. Using o kvadraturi wouldn't be wrong if you were having a general discussion about it, but pitati za is the most natural collocation for "inquire about".
Why is the agency (agencija) in the accusative case (agenciju)?
In Croatian, the person, group, or entity you are asking is the direct object of the verb pitati (to ask). Direct objects take the accusative case, which is why the feminine noun agencija changes its ending to -u, becoming agenciju.
Could I form this question using Da li ste pitali instead of Jeste li pitali?
Yes, Da li ste pitali... is perfectly understood and widely used in everyday speech. However, in standard Croatian, forming a yes/no question by putting the conjugated verb first followed by the question particle li (as in Jeste li pitali...) is considered better style and is strongly preferred in writing.
Is kvadratura the only word used for "area"?