Vlasac režemo čistim škarama.

In Croatian, the subject pronoun is often omitted because the verb ending already tells you who is doing the action.

• režemo = we cut / we are cutting
• the ending -mo marks 1st person plural: we

So mi is not necessary. You could say Mi režemo vlasac čistim škarama, but that usually adds emphasis, like we cut it.

Režemo is the present tense, 1st person plural form of the verb rezati or rezati/rezati-type verb meaning to cut.

So:

• ja režem = I cut
• ti režeš = you cut
• on/ona/ono reže = he/she/it cuts
• mi režemo = we cut
• vi režete = you cut
• oni/one/ona režu = they cut

In a sentence like this, present tense can often mean either:

• we cut
• we are cutting

depending on context.

Yes, the direct object here is in the accusative case. The reason vlasac does not visibly change is that for many masculine inanimate nouns, the nominative and accusative singular are the same.

So:

• nominative: vlasac
• accusative: vlasac

That is why it looks unchanged even though it is functioning as the object.

This is the instrumental case, which is often used to express the tool or means used to do something.

Here, čistim škarama means:

• with clean scissors
• literally: by means of clean scissors

Both words are in the instrumental plural:

• čistim = instrumental plural of čist / čista / čisto
• škarama = instrumental plural of škare

So the phrase agrees correctly in case + number + gender.

Yes. Škare is a plural-only noun in normal use, very much like English scissors.

So you usually treat it as plural:

• ove škare = these scissors
• čiste škare = clean scissors
• sa škarama / škarama = with scissors

In this sentence, the instrumental plural form is škarama.

Because the adjective has to match škare in case and number.

The base dictionary form is:

• čist = clean

But here the noun is:

• instrumental plural

So the adjective also becomes instrumental plural:

• čistim škarama = with clean scissors

If it were nominative plural, you would get:

• čiste škare = clean scissors

So the difference comes from the case, not just from the noun being plural.

Yes. Croatian word order is fairly flexible because case endings show the grammatical relationships.

The neutral order here is:

• Vlasac režemo čistim škarama.

But you could also say:

• Čistim škarama režemo vlasac.
• Režemo vlasac čistim škarama.

These all mean essentially the same thing, but the emphasis changes:

• starting with čistim škarama highlights the tool
• starting with režemo highlights the action
• starting with vlasac highlights what is being cut

Croatian does not have articles like English a/an/the.

So:

• vlasac can mean chives, the chives, or some chives
• škare can mean scissors, the scissors, or some scissors

The exact meaning depends on the context.

That is why Vlasac režemo čistim škarama can be translated naturally in different ways, such as:

• We cut chives with clean scissors.
• We cut the chives with clean scissors.

Grammatically, vlasac is singular.

Even though English often uses chives as a plural-looking word, Croatian uses the singular noun vlasac for the plant/herb in general.

So the sentence literally has a singular direct object:

• vlasac = chive / chives as a herb

This is a common kind of mismatch between languages: the idea may be the same, but the grammar is different.

Sometimes yes, but the meaning may shift slightly.

• rezati = to cut
• sjeckati = to chop
• nasjeckati = to chop up finely
• šišati is not used here, because that means things like to cut hair

So režemo works well if you are talking about cutting chives with scissors. If you wanted to stress that you are chopping them into small pieces, another verb might be better depending on context.

It means the scissors are clean.

The adjective čistim agrees directly with škarama, so it describes the noun:

• čistim škarama = with clean scissors

If you wanted to say that the action is done cleanly or neatly, Croatian would normally use an adverb or a different structure, not an adjective agreeing with škarama.