Questions & Answers about Trebam tvoj potpis na obrascu.
Trebam is the 1st person singular present tense of trebati (to need). Croatian commonly uses the present tense for immediate needs: Trebam tvoj potpis... = I need your signature....
You’ll also hear the conditional for politeness: Trebala bih / Trebao bih tvoj potpis... (I would need your signature...).
Because potpis is functioning as the direct object of trebam, so it stays in the accusative. For inanimate masculine nouns like potpis, accusative singular is the same as nominative: potpis.
Tvoj agrees with potpis (masculine, singular), so you get tvoj potpis.
You’d use genitive (tvojeg potpisa) in different structures, e.g. Trebam tvoJEG potpisa is possible in some contexts but sounds less neutral; more typical is Treba mi tvoj potpis / Trebam tvoj potpis.
Both mean I need your signature..., but the structure differs:
- Trebam tvoj potpis... = I need your signature (subject I is explicit in the verb ending).
- Treba mi tvoj potpis... = literally Your signature is needed to me → very common and often sounds a bit more “Croatian-natural” in everyday use.
mi is the dative pronoun meaning to me.
With na:
- na + locative = location/state (on something, where it already is) → na obrascu = on the form.
- na + accusative = motion/goal (onto something) → na obrazac = onto the form (as in placing/putting something onto it).
Since a signature is located on the form, locative is used.
Obrascu is locative singular of obrazac (form). Many masculine nouns ending in a consonant take:
- nominative: obrazac
- locative: (na) obrascu
- dative: (k) obrascu
The stem changes from -zac to -sc- in the oblique cases: obrazac → obrascu (a common kind of consonant change in Croatian declension).
You can omit it if it’s obvious whose signature you mean:
- Trebam potpis na obrascu. = I need a/the signature on the form. But tvoj makes it specific: I need your signature (not someone else’s).
Yes, for formal/polite you:
- informal singular: tvoj potpis
- formal (to one person) or plural: Vaš potpis
So: Trebam Vaš potpis na obrascu.
Croatian usually drops subject pronouns because the verb ending already shows the person.
- Normal/neutral: Trebam tvoj potpis...
- With emphasis/contrast: Ja trebam tvoj potpis, a on treba tvoju adresu. (I need your signature, and he needs your address.)
This order is natural and clear: Trebam tvoj potpis na obrascu.
Other possible orders (with slightly different emphasis):
- Trebam na obrascu tvoj potpis. (emphasizes the location a bit)
- Tvoj potpis trebam na obrascu. (strong emphasis on tvoj potpis)
Croatian word order is flexible, but neutral information typically follows the verb.
Yes:
- potpis = signature (the noun, the result)
- potpisati = to sign (verb)
- potpisivanje = signing (the act/process)
So you could also say: Trebam da potpišeš obrazac / more naturally Trebam da potpišeš obrazac is more Bosnian/Serbian; in Croatian you’d more often say Trebam da potpišeš obrazac in speech, but many prefer Molim te, potpiši obrazac (Please sign the form).
It can be perfectly fine in neutral contexts (office, practical instruction), but to soften it you can use:
- Molim te, trebam tvoj potpis na obrascu. (Please, I need your signature on the form.)
- Možete li potpisati obrazac? / Možete li staviti potpis na obrazac? (Could you sign the form?)
For formal address: Molim Vas... / Možete li...
Typically it means physically on the form—i.e., in the designated signature area. Croatian often uses na for something written/marked on a document: potpis na obrascu, ime na popisu (name on the list).
You may also hear u obrascu in some contexts, but potpis is very commonly described with na.
Negation is straightforward:
- Ne trebam tvoj potpis na obrascu. = I don’t need your signature on the form.
If using the other structure: - Ne treba mi tvoj potpis na obrascu. = I don’t need your signature on the form.