Connect adjective forms to noun gender and number, then practise definite phrases.
Start with the noun and article
Learn a noun with en, ei or et before adding an adjective. Many adjectives take t with singular neuter nouns and e in the plural. Not every adjective is regular, so check a dictionary.
en fin dag – et fint hus – fine dager
Notice fin, fint and fine.
Definite phrases follow another pattern
A common definite phrase uses den, det or de, usually an adjective in e and a definite noun. Do not combine an indefinite article with a definite noun. Compare a nice house and the nice house.
et fint hus – det fine huset
Huset is definite and fine is the adjective form in this phrase.
Agreement after the verb
When an adjective follows er, check the noun’s gender and number. Do not automatically use e because the noun is definite; this differs from an adjective before a definite noun.
Huset er fint. Husene er fine.
Singular neuter fint; plural fine.
Try it yourself
Use stor with bil and hus in indefinite phrases, then describe two large houses. Check gender and number.