Wir bouldern den Überhang heute aus.

Because the full verb here is ausbouldern, which is a separable verb.

In a normal main clause, German splits separable verbs:

• the main verb part goes to position 2: bouldern
• the prefix goes to the end: aus

So:

• Wir bouldern den Überhang heute aus.

Compare that with an infinitive, where it stays together:

• Wir wollen den Überhang heute ausbouldern.

This is very common in German:

• Ich mache das Licht aus.
• Sie räumt die Küche auf.

So aus at the end is not a separate adverb here; it belongs to the verb.

It is understandable, but it is quite colloquial and sport-specific. It sounds like climbing/bouldering jargon rather than formal standard German.

German often creates new verbs like this, especially in hobbies and technical contexts:

• bouldern from English boulder
• ausbouldern = something like to boulder through / to finish by bouldering / to complete the overhang by bouldering

So a learner should recognize that this is the kind of word native speakers may use naturally in context, even if it is not the most traditional dictionary verb.

Because Überhang is the direct object of the verb, so it is in the accusative case.

The noun is masculine:

• nominative: der Überhang
• accusative: den Überhang

So:

• Der Überhang ist schwierig.
  Here it is the subject.

• Wir bouldern den Überhang aus.
  Here it is the object.

For masculine nouns, der changes to den in the accusative.

In climbing language, Überhang means an overhang — a section of wall that leans outward.

In other contexts, Überhang can also mean an excess, surplus, or overhang in a more abstract or technical sense. But in this sentence, the climbing meaning is the natural one.

So the sentence uses very context-based vocabulary:

• bouldern → climbing activity
• Überhang → climbing wall feature

Here aus- suggests a sense like completely, through to the end, or finish off.

That is a common effect of aus- in German. It often gives the idea of:

• doing something fully
• using something up
• carrying an action through to completion

So ausbouldern is not just to boulder, but more like:

• to finish the overhang by bouldering
• to climb the overhang out
• to complete that section

The exact nuance depends on context, but the key point is that aus- makes the action sound completed rather than just ongoing.

Because aus belongs at the end as the separated prefix, while heute is a normal time adverb and goes in the middle part of the sentence.

German main clauses often look like this:

• subject
  • finite verb
    • middle field
      • separable prefix / final elements

So:

• Wir | bouldern | den Überhang heute | aus

That is why heute comes before aus.

Yes. That also sounds natural.

German is flexible with adverb placement, especially in the middle part of the clause. Both of these work:

• Wir bouldern den Überhang heute aus.
• Wir bouldern heute den Überhang aus.

The difference is mostly one of focus or flow:

• den Überhang heute can slightly emphasize what you are climbing
• heute den Überhang can slightly emphasize when

But both are correct and normal.

Because German has borrowed bouldern as a verb from English-based climbing terminology, and once borrowed, it behaves like a regular German verb.

So speakers can conjugate it:

• ich bouldere
• du boulderst
• wir bouldern

And they can even build new forms from it, such as:

• ausbouldern

This is very common in modern German, especially in sports, technology, and everyday speech.

Yes. German often uses the present tense for both:

• actions happening now
• planned or expected future actions

So Wir bouldern den Überhang heute aus can mean something like:

• we are finishing that overhang today
• we’ll finish that overhang today

German does not always need a special future form when the time is already clear from a word like heute.

Because all nouns are capitalized in German.

So:

• wir = not capitalized in the middle of a sentence
• bouldern = verb, not capitalized
• den Überhang = noun, so capitalized
• heute = adverb, not capitalized

This is one of the most visible spelling differences between German and English.

Not necessarily.

Although aus often does mean out or out of in other contexts, in separable verbs the prefix often has a more idiomatic function. Here it is better to think of ausbouldern as a single verb meaning something like finish/complete by bouldering, not as the separate idea boulder out word-for-word.

This is a very important habit in German: with separable verbs, try to learn the whole verb meaning, not just the prefix by itself.