Der Privatverkauf endet heute.

Because Privatverkauf is a masculine noun in German, so it takes der in the nominative singular.

In this sentence, der Privatverkauf is the subject, so the nominative article is used:

• der = masculine
• die = feminine
• das = neuter

You usually have to learn the gender together with each noun:

• der Privatverkauf
• not just Privatverkauf

It is a compound noun:

• privat = private
• Verkauf = sale

So Privatverkauf literally means private sale.

German often combines words into one longer noun. English usually writes these as separate words more often, but German commonly joins them:

• Privatverkauf = private sale
• Autoverkauf = car sale
• Sommerferien = summer holidays

Because all nouns are capitalized in German.

So in this sentence:

• Der = article, not capitalized because it is at the start only
• Privatverkauf = noun, so it must be capitalized
• endet = verb, not capitalized
• heute = adverb, not capitalized

This is one of the most noticeable differences from English.

Endet is the third-person singular present tense of the verb enden = to end.

The subject is der Privatverkauf, which is singular, so German uses:

• ich ende
• du endest
• er/sie/es endet

So Der Privatverkauf endet heute means The private sale ends today.

In a normal German main clause, the finite verb usually comes in second position. This is often called the V2 rule.

Here the sentence is:

• Der Privatverkauf = position 1
• endet = position 2
• heute = the rest

So:

• Der Privatverkauf endet heute.

If you move heute to the front, the verb still stays second:

• Heute endet der Privatverkauf.

This is very important in German word order.

Yes, absolutely.

Both are correct:

• Der Privatverkauf endet heute.
• Heute endet der Privatverkauf.

The difference is mainly emphasis:

• Der Privatverkauf endet heute puts the topic first: the private sale
• Heute endet der Privatverkauf puts more focus on today

In both cases, the verb endet stays in second position.

Because heute is an adverb, not a noun.

In English, today also works as an adverb:

• The sale ends today

German uses heute the same way:

• heute = today

Since it is not a noun here, it does not need an article.

Yes, in many contexts the German present tense can correspond to several English forms, depending on the situation:

• ends today
• is ending today

German often uses the simple present where English might use either the simple present or the present progressive.

So Der Privatverkauf endet heute can sound natural as:

• The private sale ends today
• The private sale is ending today

The exact English choice depends on context and style.

A helpful approximation is:

pree-VAHT-fer-KOWF

A few details:

• Privat has stress on the second syllable: pri-VAT
• Verkauf has stress on the second syllable: fer-KAUF
• the v in Privat is pronounced like English v
• the v in Verkauf is pronounced like f, because in many German words v is pronounced f
• au sounds like ow in cow

So:

• Privatverkauf ≈ pree-VAHT-fer-KOWF

Yes. German uses compound nouns very often, and they are extremely common in everyday language.

The last part usually gives the main category of the word:

• Verkauf = sale
• Privatverkauf = a kind of Verkauf
• Sonderverkauf = special sale
• Ausverkauf = clearance sale / sell-off

So when you see a long noun, it often helps to look at the final part first.

Yes. Der Privatverkauf usually sounds like the private sale, meaning a specific one that the speaker and listener can identify from context.

For example:

• on a sign
• in an advertisement
• in a conversation about a particular sale

If German wanted to say a private sale, it would normally use:

• Ein Privatverkauf endet heute.

But in real use, der often points to a known or specific event.

It can, but if it does, German changes the word order to keep the verb second.

Compare:

• Der Privatverkauf endet heute.
• Heute endet der Privatverkauf.

What German does not normally do in a main clause is:

• Heute der Privatverkauf endet. ❌

That sounds wrong because the verb must stay in second position.

So if you put heute first, the subject moves after the verb:

• Heute
  • endet
    • der Privatverkauf

It is in the nominative case because it is the subject of the sentence.

You can ask:

• What ends today?
• The private sale

That makes der Privatverkauf the subject, so nominative is used:

• der Privatverkauf

If it were an object in another sentence, the article might change depending on the case:

• Ich sehe den Privatverkauf.
  Here it becomes den Privatverkauf because it is accusative.