Pomozi mi privezati jahtu na vez.

Pomozi is the singular informal imperative of pomoći, meaning help! or please help when speaking to one person you address with ti.

So the sentence is directed at one person in a familiar way.

If you wanted the formal or plural version, you would say Pomozite mi privezati jahtu na vez.

Because pomoći is an irregular verb. Its imperative is pomozi and needs to be learned as a set form.

A learner might expect something else based on other forms of the verb, but pomozi is the standard imperative:

• ja mogu pomoći = I can help
• pomozi! = help!

So this is just one of those verb forms worth memorizing.

Mi is the short dative form of ja.

This is important because pomoći in Croatian takes the dative, not a direct object the way English does. So Croatian structures it more like:

Help to me tie the yacht

rather than literally Help me tie the yacht.

Examples:

• Pomozi mi = Help me
• Pomozi mu = Help him
• Pomozi nam = Help us

The longer form meni is possible for emphasis, but mi is the normal neutral choice.

After pomoći / pomagati, Croatian often uses an infinitive to show what someone is helping with.

So:

• Pomozi mi privezati jahtu = Help me tie/moor the yacht

This is a very natural Croatian structure. English often uses to before the second verb, but Croatian just uses the infinitive directly.

A different but also natural structure would be:

• Pomozi mi da privežem jahtu na vez

That literally means something like Help me so that I tie the yacht to the berth, but in natural English it still comes out as Help me tie the yacht to the berth.

Privezati is more specific here. It means to tie up, fasten to something, moor.

The prefix pri- adds the idea of attaching to or bringing into contact with something. In a nautical context, that makes it a very natural verb for tying a yacht to a berth or mooring place.

Also, privezati is perfective, so it focuses on the action as a completed result: the yacht ends up properly tied up.

So in this sentence, privezati is a better fit than the more general vezati.

Because jahtu is the accusative singular of jahta.

It is the direct object of privezati:

• What are we tying up?
• Jahtu

For many feminine nouns ending in -a, the accusative singular changes to -u:

• jahta → jahtu
• kuća → kuću
• žena → ženu

So jahtu is exactly what you would expect grammatically.

In this sentence, na vez means to the berth, to the mooring place, or into its mooring position.

Here vez is a nautical term. In this context, it refers to the place where a boat or yacht is tied up in a marina, harbor, or dock area.

So the phrase is not about a random tie or knot. It is specifically about securing the yacht at its proper place.

Because after verbs of movement or actions that place something somewhere, na usually takes the accusative.

Here the yacht is being tied to a berth as the result of the action, so Croatian uses na + accusative.

The noun vez is masculine inanimate, and for masculine inanimate nouns, the accusative singular is the same as the nominative singular:

• nominative: vez
• accusative: vez

That is why you see na vez, not na vezu.

A form like na vezu can appear in other contexts, especially when talking about location at the berth, but in this sentence the idea is the action of putting or securing the yacht there.

Not completely. Croatian word order is fairly flexible, but some parts are more constrained than others.

The biggest point here is mi, which is a clitic. Clitics usually go very early in the sentence, often in second position. That is why Pomozi mi... sounds natural.

The rest can shift more depending on emphasis, but the neutral order is:

• Pomozi mi privezati jahtu na vez.

If you rearrange it, the meaning usually stays similar, but the focus may change, and some orders sound less natural than the original.

You would change Pomozi to Pomozite:

Pomozite mi privezati jahtu na vez.

This can mean:

• speaking politely to one person
• speaking to several people

So:

• Pomozi mi... = informal singular
• Pomozite mi... = formal singular or plural

Yes. That is actually a very good natural English rendering.

Because privezati jahtu na vez is specifically about securing a yacht in its berth, English moor the yacht is often a better fit than a very literal tie the yacht.

So depending on context, the sentence can match English expressions like:

• Help me tie up the yacht
• Help me moor the yacht
• Help me secure the yacht at the berth