Nemoj stati na puža.

In this sentence, nemoj means don’t.

It is a very common way to make a negative command in Croatian:

• Nemoj + infinitive = Don’t do ...

So:

• Nemoj stati = Don’t step / don’t step onto

It is addressed to one person in an informal way.

Here stati means to step on / step onto, because it is used with na.

So:

• stati na nešto = to step on something

This same verb can have other meanings in other contexts, such as to stop or to come to a standstill, but in stati na puža, the meaning is clearly step on a snail.

Because stati and stajati are different verbs in aspect and meaning.

• stati is perfective and usually refers to one completed act
• stajati is imperfective and usually means to stand or to be standing

In this sentence, the speaker is warning someone against one single action: stepping on the snail. That is why stati is the natural choice.

If you used stajati, the meaning would shift toward standing, not stepping.

Because after na with a verb of movement, Croatian uses the accusative case.

So:

• dictionary form: puž = snail
• in this sentence: na puža

Also, puž is a masculine animate noun. For masculine animate nouns, the accusative singular looks like the genitive singular. That is why you get puža.

A useful comparison:

• Vidim puža. = I see a snail.
• Stao je na puža. = He stepped on a snail.

Here na means on / onto.

With a verb like stati, it gives the idea of moving your foot onto something, which in natural English becomes step on.

So:

• na puža literally = onto the snail
• natural English meaning = on the snail

It is accusative here.

This can confuse learners because for masculine animate singular nouns, the accusative has the same form as the genitive.

So although puža looks like a genitive form, in Nemoj stati na puža, it is functioning as the accusative, because na with movement takes the accusative.

Croatian usually leaves out subject pronouns when they are clear from the verb form or the situation.

So Nemoj stati na puža already means:

• You, don’t step on the snail

The you is understood automatically. You could add ti for emphasis:

• Ti nemoj stati na puža.

But normally that is unnecessary.

For several people, or for one person in a polite/formal way, use nemojte:

• Nemojte stati na puža. = Don’t step on the snail.

For let’s not, use nemojmo:

• Nemojmo stati na puža. = Let’s not step on the snail.

So the pattern is:

• nemoj = singular informal
• nemojte = plural or polite
• nemojmo = let’s not

Yes, Croatian word order is fairly flexible.

The neutral, most natural version is:

• Nemoj stati na puža.

But you could also move things around for emphasis, for example:

• Na puža nemoj stati.

That version puts extra focus on the snail. Even so, the original sentence is the normal default order.

Because after nemoj, Croatian normally uses the infinitive, so:

• Nemoj stati ... is the standard pattern.

Ne stati by itself is not the usual way to form this kind of command.

A learner may also wonder about Ne stani na puža. That may be understandable, but Nemoj stati na puža is the safer and more standard phrasing for Don’t step on the snail.

A rough English-style pronunciation is:

• NEH-moy STAH-tee nah POO-zha

A few details:

• j sounds like English y
• ž sounds like the s in measure
• u is like oo in food

So puža sounds roughly like POO-zha.