Use komme fra plus the country: Jeg kommer fra Spania. Nationality and language words are lower case, and the language name usually matches the adjective - norsk is both "Norwegian" and "the Norwegian language".
Examples
- Jeg kommer fra Spania.
- I come from Spain.
- Hun er tysk, og jeg er engelsk.
- She is German and I am English.
- Han snakker godt norsk.
- He speaks Norwegian well.
The mistake to avoid
Lower case: norsk and engelsk, never "Norsk".
Where this fits in
Greetings & introductions, Norwegian A1: Say hello, give your name, ask someone else's, and where they're from.