Present participles as adjectives

The Present Participle (Partizip I)

To describe an ongoing action, English uses the "-ing" form of a verb, like "the waving child" or "the glowing light." In German, this is called the present participle (Partizip I).

Forming the present participle is simple: just add -d to the infinitive.

to glow
leuchten

For leuchten (to glow), the base present participle is leuchtend (glowing).

Using Participles as Adjectives

When you place a present participle in front of a noun, it acts as an attributive adjective. It takes standard adjective endings to match the noun's gender, number, and case.

With a definite article, leuchtend gets an -e ending for a neuter accusative noun:

We visit the amusement park and see the glowing Ferris wheel.
Wir besuchen den Freizeitpark und sehen das leuchtende Riesenrad.

Similarly, winken (to wave) becomes winkend, taking the -e ending for a neuter nominative noun:

The waving child is sitting on the carousel.
Das winkende Kind sitzt auf dem Karussell.

Participles in Other Cases

Participles follow standard adjective declension. Without an article before a plural noun, the participle takes the strong ending -e in the nominative and accusative.

Screaming people are riding the wild roller coaster.
Schreiende Leute fahren mit der wilden Achterbahn.

After a definite article in the dative case, the weak adjective ending is -en.

The father is buying sweet cotton candy for the laughing girl.
Der Vater kauft dem lachenden Mädchen süße Zuckerwatte.

This also applies to dative plural nouns:

Is the fast carousel fun for the screaming children?
Macht das schnelle Karussell den schreienden Kindern Spaß?