Questions & Answers about Wir kennen den Zeitpunkt.
Because Zeitpunkt is the direct object of the verb kennen, and direct objects take the accusative case in German.
- der Zeitpunkt = nominative singular masculine
- den Zeitpunkt = accusative singular masculine
Since Zeitpunkt is a masculine noun, its article changes from der to den in the accusative.
You learn the gender together with the noun:
- der Zeitpunkt = the point in time / moment
In German, noun gender is not always predictable, so it is best to memorize nouns with their article. Here, the dictionary form is der Zeitpunkt, so the noun is masculine.
Because all German nouns are capitalized.
So in this sentence:
- Wir = pronoun
- kennen = verb
- den = article
- Zeitpunkt = noun
Only Zeitpunkt is capitalized because it is a noun. Wir is also capitalized here because it is the first word of the sentence.