Languages Around the World

Adjectives usually go in front of their nouns. But you just can't use the dictionary form of an adjective, it has to be declined, with an ending.

after der: -e
after (feminine) die: -e
after das: -e
after die: -en

the new car: der neue Wagen
the new newspaper: die neue Zeitung
the new radio: das neue Radio
the new tables: die neuen Tische

after (masculine) ein: -er
after eine: -e
after (neuter) ein: -es

a new car: ein neuer Wagen
a new newspaper: eine neue Zeitung
a new radio: ein neues Radio

However, if an adjective is in a predicate, it gets no ending.