Nemoj sipati previše soka djeci prije ručka.

Nemoj + infinitive is a very common way to make a negative command in Croatian.

So:

• Sipaj! = Pour!
• Nemoj sipati! = Don’t pour!

In your sentence, Nemoj sipati... means Don’t pour...

This is the informal singular form, used when speaking to one person you address with ti.

In Croatian, negative commands are usually formed with:

• nemoj + infinitive for singular informal
• nemojmo + infinitive for let’s not...
• nemojte + infinitive for plural or formal

So Croatian normally prefers:

• Nemoj sipati = Don’t pour
• Nemojte sipati = Don’t pour (to several people / formal)

This is the normal, natural structure learners should remember.

Because after nemoj, Croatian uses the infinitive.

So:

• nemoj jesti = don’t eat
• nemoj govoriti = don’t speak
• nemoj sipati = don’t pour

That is just the standard pattern.

It is singular informal.

It is what you say to one person you address as ti.

Other versions would be:

• Nemoj sipati... = to one person, informal
• Nemojte sipati... = to more than one person, or to one person formally
• Nemojmo sipati... = let’s not pour...

Because after a word of quantity like previše (too much), the noun usually goes into the genitive.

So:

• sok = juice
• previše soka = too much juice

This is very common in Croatian:

• puno vode = a lot of water
• malo kruha = a little bread
• previše šećera = too much sugar

So previše soka is exactly what you would expect.

Soka is in the genitive singular.

It is triggered by the quantity word previše.

The logic is similar to other quantity expressions in Croatian, where the noun after the quantity is often in the genitive:

• mnogo ljudi = many people
• dosta vremena = enough time
• previše soka = too much juice

So the case is not caused directly by the verb sipati, but by previše.

Djeci is the dative plural of djeca (children).

It is used because the children are the indirect object: they are the ones receiving the juice.

Compare:

• sipati sok = to pour juice
• sipati sok djeci = to pour juice to/for the children

In English we often say pour the children some juice or pour some juice for the children. Croatian marks that receiver with the dative:

• djeci = to the children / for the children

Because the sentence needs the dative plural, not the genitive.

The base noun is:

• djeca = children

Its plural forms are irregular, and one important form is:

• djeci = to the children

So in this sentence:

• soka = genitive singular, because of previše
• djeci = dative plural, because they are the recipients

Those two words are in different cases for different reasons.

Because the preposition prije (before) requires the genitive.

So:

• ručak = lunch
• prije ručka = before lunch

This is another very common pattern:

• prije škole = before school
• prije posla = before work
• prije večere = before dinner

So prije ručka is simply prije + genitive.

Croatian has no articles like English a/an/the.

So ručak can mean:

• lunch
• the lunch

depending on context.

That means prije ručka naturally means before lunch here. You do not need any separate word for the.

Because Croatian often leaves out subject pronouns when they are already clear from the verb form or context.

In commands, this is especially normal.

So instead of saying something equivalent to You, don’t pour..., Croatian simply says:

• Nemoj sipati...

The person being addressed is understood.

Previše means too much.

Here it modifies soka:

• previše soka = too much juice

Its position before the noun is normal and natural. Croatian commonly uses quantity words this way:

• previše soka
• puno vode
• malo vremena

So previše works as a quantity expression, and the noun after it goes into the genitive.

Yes, Croatian word order is more flexible than English, although some versions sound more neutral than others.

The original sentence:

• Nemoj sipati previše soka djeci prije ručka.

is a normal, neutral order.

You could also hear variations like:

• Nemoj djeci sipati previše soka prije ručka.
• Prije ručka nemoj sipati djeci previše soka.

These can shift emphasis slightly:

• putting djeci earlier can emphasize to the children
• putting prije ručka first can emphasize before lunch

But the original sentence is a very natural default version.

Sipati is correct and natural, especially in a broad sense of pouring.

However, learners may also encounter točiti, which is often used for pouring liquids into a glass or cup.

Very roughly:

• sipati = pour, add, sprinkle; quite broad
• točiti = pour liquid, draw a drink; also common

Depending on region and context, some speakers might prefer one more than the other. But Nemoj sipati previše soka... is perfectly good Croatian.

Yes, there is a small aspect nuance.

Sipati is imperfective. In a sentence like this, it gives a general warning or instruction:

• Don’t pour too much juice for the children before lunch.

That can sound like a general rule or practical advice.

A perfective verb could be used in some contexts, but it would sound more like don’t perform that single completed action. Learners do not need to overthink this here: nemoj + imperfective infinitive is a very common and safe pattern for negative instructions.

Yes. The dative djeci often covers both ideas in English:

• to the children
• for the children

In context, English may translate it either way. Croatian uses the dative to mark the affected recipient, and English chooses the most natural phrasing.

So:

• Nemoj sipati previše soka djeci prije ručka.

can naturally be understood as:

• Don’t pour the children too much juice before lunch.
• Don’t pour too much juice for the children before lunch.

A useful breakdown is:

• Nemoj = negative command marker, singular informal
• sipati = infinitive, because it follows nemoj
• previše = too much
• soka = genitive singular after previše
• djeci = dative plural, to/for the children
• prije = before
• ručka = genitive singular after prije

So the sentence combines two very common Croatian patterns:

1. nemoj + infinitive for a negative command
2. preposition/quantity word + required case for nouns after them