Hij kan de greep niet bereiken, laat staan de klimwand beklimmen.

Here laat staan is an idiomatic expression meaning let alone or much less.

So the sentence means:

• He cannot reach the hold,
• let alone climb the climbing wall.

Literally, laat staan comes from words meaning something like leave standing, but in this sentence you should treat it as a fixed expression, not translate it word by word.

In a normal Dutch main clause, the finite verb usually comes in second position. Here, the finite verb is kan.

So the structure is:

• Hij = subject
• kan = finite verb in second position
• the rest of the sentence follows

That is why you get:

• Hij kan de greep niet bereiken

and not:

• Hij niet kan de greep bereiken

English speakers often need time to get used to this verb-second pattern in Dutch.

Because kan is a modal verb, and modal verbs in Dutch are followed by an infinitive at the end of the clause.

So:

• kan = can
• bereiken = reach

Together:

• kan bereiken = can reach

In Dutch main clauses, the modal is near the front, while the infinitive usually goes to the end:

• Hij kan de greep niet bereiken.

This is very common with modal verbs such as kunnen, moeten, willen, mogen, zullen.

In this sentence, niet negates the action bereiken: he is not able to reach the hold.

So the natural Dutch order is:

• Hij kan de greep niet bereiken

This is the usual placement when niet negates the verb phrase near the end of the clause.

You can sometimes move niet earlier, but that usually changes the emphasis. For example:

• Hij kan niet de greep bereiken

would sound more contrastive, as if you mean not the hold but perhaps something else. In the given sentence, de greep niet bereiken is the normal choice.

Because Dutch often leaves out repeated material when it is already understood. This is called ellipsis.

The full idea is something like:

• Hij kan de greep niet bereiken, laat staan dat hij de klimwand kan beklimmen.

But Dutch often shortens that to:

• Hij kan de greep niet bereiken, laat staan de klimwand beklimmen.

So in the second part, the listener understands that the subject and modal idea are still there:

• hij
• kan

In other words, the sentence really means:

• He cannot reach the hold, let alone can he climb the climbing wall.

Because Dutch modal verbs take a bare infinitive, not an infinitive with te.

Compare:

• Hij kan beklimmen = He can climb
• not Hij kan te beklimmen

In this sentence, the second part is shortened, but the modal idea is still understood. So beklimmen stays a bare infinitive.

A fuller version would be:

• ... laat staan dat hij de klimwand kan beklimmen.

Again, no te after kan.

In everyday Dutch, greep can mean grip or hold, but in a climbing context it specifically means a hold on the wall, the piece you grab with your hand.

So here:

• de greep = the climbing hold / handhold

That is a good example of how context changes the best English translation. A learner might first think grip, but in climbing hold is the natural meaning.

Because beklimmen is a transitive verb: it takes a direct object.

So:

• de klimwand beklimmen = climb the climbing wall

By contrast, klimmen is usually intransitive, and often needs extra wording:

• op de klimwand klimmen = climb on the climbing wall

In this sentence, beklimmen is the neatest choice because the wall is the thing being climbed directly.

They describe two different actions:

• bereiken = to reach
• beklimmen = to climb

So the logic of the sentence is:

1. He cannot even reach the hold.
2. Therefore, he certainly cannot climb the whole wall.

That is exactly why laat staan works well here: it introduces something that is even less likely.

Yes. A fuller version would be:

• Hij kan de greep niet bereiken, laat staan dat hij de klimwand kan beklimmen.

This version is a bit more explicit because it gives you a complete clause after laat staan.

The original sentence is more compact and very natural, but both are correct. Learners often find the dat version easier to understand at first.

Because laat staan introduces a separate contrasting idea: something even less possible than the first statement.

So the comma helps divide the sentence into two parts:

• Hij kan de greep niet bereiken,
• laat staan de klimwand beklimmen.

In practice, this comma is standard and helps readability.

Because both greep and klimwand are de-words in Dutch.

So:

• de greep
• de klimwand

This is mostly something you have to learn with each noun. There is not always a simple reason visible from the English translation. For learners, it is best to memorize nouns together with their article.

It is standard Dutch and quite common. You can hear and read it in everyday speech, writing, journalism, and more formal contexts too.

So this sentence sounds natural Dutch, not unusually formal or old-fashioned. The only slightly specialized part is the climbing vocabulary, especially greep in the sense of a climbing hold.