This is the 3301st most frequent German word.
gelben
"Gelben" is the plural or accusative form of "gelb," meaning "yellow" in English.
'Gelben' is used as an adjective modifying the noun 'Auto', which is neuter nominative and singular. The word takes the weak inflection '-e' as it's preceded by the definite article 'Das', resulting in 'gelbe'.
Das gelbe Auto gehört meinem Freund.
The yellow car belongs to my friend.
Here, 'gelben' modifies 'Blumen', which is plural and accusative feminine. As it's preceded by the definite article 'die,' 'gelben' takes the weak inflection ending '-en.'
Ich sah die gelben Blumen im Park.
I saw the yellow flowers in the park.
In this sentence, 'gelben' describes 'Seiten' (feminine plural) and is preceded by the definite accusative article 'die.' The adjective 'gelben' adopts the weak '-en' inflection as a result.