Note: Noen and noe can also be used as nouns, although they're filed here under adjectives.

Noen

Noen means some when used with a plural noun both masculine feminine and plural.

1. Jeg har noen bøker (en/ei bok)

2.

Before m. and f. countable nouns in the singular, noen can be used in questions and positive and negative questions to mean 'any':
1. 

Vi har ikke noen god tekstbok som hun ikke har sett allerede.

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