Přistaneme u břehu, ledaže je tam jez.

Ledaže means unless.

So:

• Přistaneme u břehu = We’ll land at the shore / We’ll come ashore
• ledaže je tam jez = unless there is a weir there

It introduces an exception to what was just said, just like unless in English.

A few similar examples:

• Půjdu tam, ledaže bude pršet. = I’ll go there, unless it rains.
• Uděláme to, ledaže nastane problém. = We’ll do it, unless a problem comes up.

It is a bit more formal or literary than some everyday alternatives, but it is perfectly normal Czech.

Přistaneme is the 1st person plural form of the verb přistát.

Here it means:

• we will land
• we will come ashore
• we will dock

Which English translation fits best depends on context. With u břehu (by the shore), it suggests something like a boat reaching land.

Grammar breakdown:

• infinitive: přistát
• aspect: perfective
• form: přistaneme
• person/number: we

Because přistát is perfective, its present-tense forms are used with future meaning. So přistaneme literally looks like a present form, but it means we will land, not we land.

This is because Czech uses present forms of perfective verbs to express the future.

• přistávat = imperfective, to be landing / to land repeatedly
• přistát = perfective, to land, to complete the landing

So:

• přistáváme = we are landing / we land
• přistaneme = we will land

This is very common in Czech. English learners often expect a separate future marker, but with perfective verbs Czech usually does not need one.

Czech usually does not need subject pronouns, because the verb ending already shows who the subject is.

• přistanu = I will land
• přistaneš = you will land
• přistaneme = we will land

So přistaneme already includes the idea of we.

You can say my přistaneme, but that adds emphasis or contrast, for example:

• My přistaneme, oni ne. = We will land, they won’t.

In a neutral sentence, leaving out my is normal.

The preposition u always takes the genitive case.

The noun is:

• nominative: břeh = shore, bank

After u, it changes to the genitive singular:

• u břehu = by the shore / at the shore

So the pattern is:

• břeh → u břehu
• dům → u domu
• most → u mostu

That is why u břehu is correct.

Literally, u břehu means by the shore or at the shore.

In this sentence, natural English may translate it as:

• at the shore
• by the shore
• sometimes on the shore, depending on context

But grammatically, u means being near something, not movement onto it.

So:

• u břehu = by/at the shore
• na břeh = onto the shore / to the shore

In this sentence, Czech uses přistaneme u břehu very naturally to mean landing by the bank/shore.

Jez means weir — a low barrier built across a river to control the flow of water.

This is not exactly the same as a large dam. In English, dam is often used more broadly, but jez is more specifically a weir.

So ledaže je tam jez means:

• unless there is a weir there

This makes sense in a river context: a weir could make landing difficult or dangerous.

Jez is a masculine inanimate noun.

Its basic form is nominative singular:

• jez = a weir

In this sentence, it stays in the nominative because it is the subject/complement of je in an existential-type statement:

• je tam jez = there is a weir there

A learner does not need the full declension right away, but the key point is that jez is masculine inanimate.

Both are possible, but the word order changes the feel slightly.

• Je tam jez. = There is a weir there.
• Tam je jez. = The weir is there / There’s a weir there.

Czech word order is flexible and often reflects emphasis and information structure.

In je tam jez, the sentence feels more like introducing the existence of something in that location — very close to English there is.

So here, je tam jez works well after ledaže:

• Přistaneme u břehu, ledaže je tam jez.

It sounds natural and idiomatic.

Both can be possible, depending on what you want to mean.

• je tam jez = there is a weir there
• bude tam jez = there will be a weir there

In your sentence, je tam jez usually means the speaker is talking about a condition that already exists: we’ll land there, unless there happens to be a weir at that spot.

So even though přistaneme refers to the future, the weir is treated as an existing fact or possible present condition.

If you meant that the weir itself will only exist in the future, then bude tam jez would be more appropriate.

Because ledaže introduces a subordinate clause.

Czech normally separates such clauses with a comma:

• Přistaneme u břehu, ledaže je tam jez.

This is similar to English punctuation with clauses introduced by words like unless, because, if, etc., although Czech comma rules are generally stricter and more regular than English ones.

Yes — ř is one of the most famous difficult Czech sounds.

Approximate pronunciations:

• přistaneme ≈ przhi-sta-ne-me
• břehu ≈ brzhe-hu

But those are only rough approximations.

About ř:

• It is a special Czech sound, something like a mix of r and zh (the s in measure).
• English does not have an exact equivalent.

Also note:

• ř in př can be especially tricky
• bř in břehu is another common difficult cluster for learners

A practical learner tip:

• first learn to say r
• then try adding a light zh sound at the same time

It takes practice; most learners do not master it immediately.

Břehu is the genitive singular form of the noun břeh.

Dictionary form:

• břeh = shore, riverbank, bank

In the sentence:

• u břehu = by the shore

So if you look the word up, search for břeh, not břehu.

This is a very common issue for learners, because Czech nouns change form depending on case.

It depends on context.

Břeh can mean:

• shore
• bank (especially riverbank)
• sometimes coast, though other words may fit better depending on the situation

In this sentence, because of jez (weir), the setting feels strongly like a river, so bank or shore is probably the best match.

Yes, that is a very natural translation.

Depending on context, přistaneme u břehu could be:

• We’ll land at the shore
• We’ll come ashore
• We’ll dock by the bank

And ledaže je tam jez could be:

• unless there is a weir there
• unless there’s a weir there

So We’ll dock by the bank unless there’s a weir there is a very good idiomatic English rendering.

It is perfectly normal, but it can sound a little more formal, careful, or literary than the most basic everyday phrasing.

In casual speech, people might sometimes rephrase the idea differently, depending on context. But ledaže is absolutely a real, useful word and worth learning.

So the important point is:

• it is not strange or obsolete
• it may sound a bit more polished than the simplest colloquial alternative

Yes. Czech word order is flexible, though the emphasis changes.

Possible variants include:

• Přistaneme u břehu, ledaže je tam jez.
• Přistaneme u břehu, ledaže tam je jez.
• Ledaže je tam jez, přistaneme u břehu.

These all express roughly the same basic idea, but the original version is smooth and natural.

For learners, the safest choice is to keep the original order until you get a stronger feel for Czech emphasis patterns.