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.

Here it is best understood as plural or as a general food item.

A useful thing to know is that many Norwegian words ending in -bær can look the same in singular and plural indefinite form:

• et blåbær = a blueberry
• blåbær = blueberries

So the form itself does not always tell you whether it is singular or plural. The context does.

In this sentence, since it says blåbær og bringebær, it naturally means blueberries and raspberries.

Because i means in/inside, and the berries are inside the fridge, not on top of it.

• i kjøleskapet = in the fridge
• på kjøleskapet = on the fridge

So if the food is stored inside, i is the correct preposition.

The -et is the definite ending, so kjøleskapet means the fridge.

The base noun is:

• et kjøleskap = a fridge

And the definite form is:

• kjøleskapet = the fridge

This is a very important Norwegian pattern: instead of usually putting a separate word for the before the noun, Norwegian often adds the definiteness directly to the noun.

It is a compound noun:

• kjøle = cool/chill
• skap = cabinet / cupboard / closet

So kjøleskap literally means something like cooling cabinet, which is the Norwegian word for fridge / refrigerator.

Then the definite ending is added:

• kjøleskap = fridge
• kjøleskapet = the fridge

Compound nouns are extremely common in Norwegian.

That is the most neutral and natural word order here.

The sentence structure is:

• Vi = subject
• har = verb
• blåbær og bringebær = object
• i kjøleskapet = place phrase

So the sentence follows a common pattern:

Subject + verb + object + place

You can move the place phrase for emphasis:

• I kjøleskapet har vi blåbær og bringebær.

That is still correct, but it puts more focus on in the fridge.

Yes, that is also correct, but it means something slightly different in emphasis.

• Vi har blåbær og bringebær i kjøleskapet = We have blueberries and raspberries in the fridge
• Det er blåbær og bringebær i kjøleskapet = There are blueberries and raspberries in the fridge

The first version focuses more on what we have. The second focuses more on what is there.

Both are natural, depending on context.

The special vowels are important:

• å sounds roughly like the vowel in British law or more
• æ sounds somewhat like the a in cat
• ø has no exact English equivalent, but it is somewhat like the vowel in French peu or German schön

So:

• blåbær has å and æ
• bringebær has æ
• kjøleskapet has ø

Also, kj in kjøleskapet is a soft sound that many English speakers find tricky. It is not a hard k sound.

Bringebær matches raspberries very well.

Blåbær is usually translated as blueberries, but in Norway it often refers to the wild Scandinavian berry that is closer to what English speakers may call a bilberry.

So in everyday learning and translation:

• blåbær = blueberries

But culturally and botanically, the Norwegian word can sometimes refer to a slightly different berry than the typical large cultivated American blueberry.

No. In Norwegian, common nouns are not capitalized.

So these are correct:

• blåbær
• bringebær
• kjøleskapet

You only use capital letters for things like:

• the beginning of a sentence
• proper names
• countries, languages in some contexts, etc.

So the sentence correctly writes the nouns in lowercase.