Questions & Answers about Vi har blåbær og bringebær i kjøleskapet.
Because har means have, while er means am/is/are.
So:
- Vi har blåbær ... = We have blueberries ...
- Vi er blåbær ... would mean We are blueberries ..., which does not make sense here.
In this sentence, har shows possession: the blueberries and raspberries are available to us / in our fridge.
Norwegian often leaves out an article when talking about some or an unspecified amount of something, especially food.
So:
- Vi har blåbær og bringebær = We have blueberries and raspberries
- It does not need a word for some.
This is very natural in Norwegian. English often also does this with plural food nouns:
- We have apples
- We have blueberries
If you wanted to be more specific, you could add a quantity word, such as noen (some) or a number.