Kad budemo kod kuće, otvorit ću limenku juhe, a sestra će narezati kruške.

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

Here, ću shows first person singular, so the listener already knows the subject is I. Croatian does this much more often than English.

So:

• Otvorit ću limenku juhe = I will open a can of soup
• Ja ću otvoriti limenku juhe = also correct, but ja adds emphasis, contrast, or clarity

In this sentence, the contrast is already clear because the second clause names sestra, so leaving out ja sounds natural.

After time words like kad when talking about the future, Croatian normally uses budem / budeš / bude / budemo... rather than ću / ćeš / će... biti.

So:

• Kad budemo kod kuće... = When we are / once we are home
• Kad ćemo biti kod kuće? = When will we be home?

The second one is a direct question, not a subordinate time clause.

This is a very common pattern in Croatian:

• Kad dođeš, nazovi me.
• Kad budemo spremni, krenut ćemo.

So in this sentence, budemo is the normal choice.

It most naturally means when we are home or once we get home.

Croatian uses be at home, but English often prefers get home in this kind of context. So depending on style, you might translate it as:

• When we’re home
• Once we’re home
• When we get home

All of those can fit the idea.

Because kod kuće is the usual idiom for at home.

There is a difference:

• kod kuće = at home
• u kući = in the house

So kod kuće refers to being at one’s home in a general sense, while u kući focuses more literally on being inside the building.

That is why Kad budemo kod kuće sounds natural here.

Because the preposition kod requires the genitive case.

The noun is:

• nominative: kuća
• genitive: kuće

So:

• kod kuće = at home

This is a fixed, very common expression, and it is worth learning as a whole phrase.

This is a standard way of forming the future in Croatian.

You can say:

• Ja ću otvoriti limenku juhe
• Otvorit ću limenku juhe

Both are correct.

When the future clitic ću comes after an infinitive ending in -ti, the infinitive usually drops the final -i in writing:

• otvoriti → otvorit ću
• raditi → radit ću

So otvorit ću is just the normal future form with the auxiliary placed after the infinitive.

Because ću / će / ćeš / ćemo / ćete are clitics. In Croatian, clitics usually come after the first stressed element in the clause.

So:

• Otvorit ću limenku juhe
  The first element is otvorit, so ću comes after it.

• A sestra će narezati kruške
  The first element is sestra, so će comes after it.

This is normal Croatian word order.

You could also rearrange things differently, but the sentence as written is very natural.

Because it is the direct object of otvoriti, so it must be in the accusative singular.

The noun is:

• nominative singular: limenka
• accusative singular: limenku

So:

• limenka = a can
• otvoriti limenku = to open a can

Because Croatian often uses the genitive after a container noun to show what the container holds.

So:

• limenka juhe = a can of soup
• čaša vode = a glass of water
• vrećica šećera = a bag of sugar

Here:

• juha = soup
• juhe = genitive singular

So limenku juhe literally works like a can of soup.

Here it is accusative plural, because kruške is the direct object of narezati.

The noun is:

• singular: kruška
• plural nominative: kruške
• plural accusative: kruške

For many feminine inanimate nouns, the nominative plural and accusative plural look the same. So the form itself is the same, but its role in the sentence tells you the case.

Here it means pears as the thing being sliced, so it is accusative.

Because Croatian verbs have aspect, and here the speaker is talking about completed future actions.

• otvoriti is perfective: to open, as a completed act
• narezati is perfective: to slice up, to cut into pieces, as a completed act

That fits this sentence well, because the idea is:

1. we get home
2. I open the can
3. my sister slices the pears

If you used imperfective verbs like otvarati or rezati, the sentence would sound more ongoing, repeated, or process-focused.

Not quite.

• rezati = to cut, to be cutting
• narezati = to slice up, cut into pieces, cut a quantity of something

So narezati kruške suggests cutting the pears into slices or pieces. It is more specific and more naturally fits food preparation.

It is also perfective, which matches the idea of one completed action in the future.

Usually yes, but it often has a slight sense of contrast or topic shift.

So here:

• otvorit ću limenku juhe, a sestra će narezati kruške

means something like:

• I’ll open the can of soup, and my sister will slice the pears

The a helps separate the two people and their different actions. It is a very common conjunction in Croatian.