Nakon predračuna ugovorite radove s podizvođačem na gradilištu.

Because nakon is a preposition that normally requires the genitive case.

• base form: predračun
• genitive singular: predračuna

So:

• nakon predračuna = after the estimate / after the quotation / after the pro forma invoice

This is a very common pattern in Croatian:

• nakon sastanka = after the meeting
• nakon ručka = after lunch
• nakon posla = after work

Predračun usually means a quotation, cost estimate, or pro forma invoice, depending on context.

In business and construction contexts, it often refers to a document showing the expected cost before the final bill. So here it most likely means something like:

• the estimate
• the quote
• the cost proposal

A learner should know that Croatian business vocabulary can sometimes map to several English words, so the exact translation depends on the situation.

Here ugovorite is most naturally understood as the imperative of ugovoriti.

That means it is giving an instruction:

• ugovorite = arrange, agree on, contract

This form can be used for:

• you all (plural imperative)
• formal singular you (polite imperative)

So the sentence sounds like an instruction such as:

• Arrange the works...
• Contract the works...

The infinitive is ugovoriti, which is a perfective verb. Perfective verbs in Croatian often focus on a completed result.

So ugovoriti means something like:

• to agree on successfully
• to arrange fully
• to conclude an agreement about

That fits this sentence well, because the instruction is not just discuss the works, but rather finalize/agree/contract them.

The related imperfective verb is ugovarati, which would suggest an ongoing process of negotiating or arranging.

Radove is the accusative plural of radovi.

• nominative plural: radovi
• accusative plural: radove

Here it is the direct object of ugovorite, so the accusative is required.

Radovi in construction language usually means:

• works
• construction works
• job tasks
• building work

So ugovorite radove means something like:

• arrange the works
• contract the construction work

This is more natural in Croatian than translating word-for-word as works in everyday English.

In construction and technical language, Croatian often uses radovi in the plural where English might use:

• work
• the work
• construction work
• the job

So although radovi is grammatically plural, the English translation may be singular or collective.

Examples:

• građevinski radovi = construction work / construction works
• završni radovi = finishing work

This is a common vocabulary point rather than a special grammar rule.

Because the preposition s(a) meaning with takes the instrumental case.

• base form: podizvođač = subcontractor
• instrumental singular: podizvođačem

So:

• s podizvođačem = with the subcontractor

This is a very common pattern:

• s prijateljem = with a friend
• s direktorom = with the director
• s inženjerom = with the engineer

Podizvođač means subcontractor.

It is built from:

• izvođač = contractor / performer / executor
• podizvođač = subcontractor

In construction, this is the company or person doing part of the work under another contractor.

So s podizvođačem means that the agreement is made with the subcontractor.

Because na can mean on or at, and when it refers to a location, it usually takes the locative case.

• base form: gradilište = construction site
• locative singular: gradilištu

So:

• na gradilištu = at the construction site / on the construction site

Compare:

• na stolu = on the table
• na poslu = at work
• na gradilištu = at the construction site

It most likely means the works at the construction site, but Croatian word order can sometimes leave a little room for interpretation.

In practice, a reader will usually understand:

• ugovorite radove s podizvođačem na gradilištu
• = arrange/contract the works with the subcontractor at the construction site
• or: arrange the on-site works with the subcontractor

Context usually makes this clear.

If someone wanted to make the attachment clearer, they might rephrase it slightly depending on the intended meaning.

Yes, it is normal and natural, especially in business or instructional language.

Croatian word order is more flexible than English word order because case endings show grammatical relationships. So this sentence could be rearranged somewhat without changing the core meaning.

For example, Croatian can move elements around for emphasis. But the given order is perfectly standard for an instruction:

1. time/context: Nakon predračuna
2. action: ugovorite
3. object: radove
4. companion/partner: s podizvođačem
5. location: na gradilištu

Grammatically, it can be either:

• plural imperative: speaking to more than one person
• formal singular imperative: speaking politely to one person

Croatian uses the same form for both.

So depending on context, it could mean:

• you all, arrange...
• please arrange... (formal singular)

In business instructions, this kind of form is very common.

Often yes, but the tone changes a little.

• nakon is neutral and very common in formal or written language.
• poslije also means after, but can sound a bit more everyday or conversational in some contexts.

So:

• Nakon predračuna... sounds very natural in formal/business Croatian.
• Poslije predračuna... may also be understood, but nakon fits this type of sentence better.

Yes. It sounds like business, administrative, or construction-site instruction language.

The vocabulary is formal and practical:

• predračun = quotation/estimate
• ugovorite = arrange/contract
• radove = works
• podizvođač = subcontractor
• gradilište = construction site

So it sounds like the kind of sentence you might see in:

• a work instruction
• an internal company note
• a project management message
• a construction workflow document