Solnedgången gjorde upplevelsen fantastisk.

Because both nouns are in the definite singular form.

• solnedgång = sunset
• solnedgången = the sunset
• upplevelse = experience
• upplevelsen = the experience

In Swedish, the definite article is often attached to the end of the noun instead of appearing as a separate word like the in English.

Both of these are en-words (common gender nouns), so their definite singular ending is -en.

Gjorde is the past tense of göra, which means to do or to make.

The sentence describes something that happened in the past, so Swedish uses the past tense:

• göra = to do / to make
• gör = does / is doing
• gjorde = did / made

So Solnedgången gjorde ... means The sunset made ...

Because gjorde and gjort are different verb forms.

• gjorde = simple past
• gjort = supine form, used with har or hade

So:

• Solnedgången gjorde upplevelsen fantastisk = The sunset made the experience fantastic
• Solnedgången har gjort upplevelsen fantastisk = The sunset has made the experience fantastic

If there is no helping verb like har or hade, you usually need gjorde, not gjort.

Yes. Göra can mean both do and make, depending on the context.

In this sentence, it follows a very common pattern:

göra + object + adjective

This means to make something/someone + adjective.

For example:

• Det gjorde mig glad. = It made me happy.
• Musiken gjorde kvällen speciell. = The music made the evening special.
• Solnedgången gjorde upplevelsen fantastisk. = The sunset made the experience fantastic.

So here, göra clearly means make.

The structure is:

• Solnedgången = subject
• gjorde = verb
• upplevelsen = direct object
• fantastisk = object complement

So the sentence means that the sunset affected the experience, and the result was that the experience became fantastic.

A useful point: fantastisk describes upplevelsen, not solnedgången.

So this sentence is not saying the sunset was fantastic. It is saying the sunset made the experience fantastic.

Because fantastisk agrees with upplevelsen, which is:

• singular
• an en-word

Swedish adjectives in this kind of position change according to gender and number:

• fantastisk = singular en-word
• fantastiskt = singular ett-word
• fantastiska = plural

Since upplevelsen is an en-word in the singular, fantastisk is the correct form.

Compare:

• upplevelsen blev fantastisk
• ögonblicket blev fantastiskt
• stunderna blev fantastiska

Because fantastisk is not being used before the noun as part of the noun phrase. It comes after the verb and functions as a complement.

Compare these two patterns:

• den fantastiska upplevelsen = the fantastic experience
  
  • here, the adjective is inside the noun phrase
• upplevelsen var fantastisk = the experience was fantastic
  
  • here, the adjective comes after the verb

Your sentence uses the second type:

• Solnedgången gjorde upplevelsen fantastisk

So Swedish does not use den before fantastisk here.

Yes, but it does not mean exactly the same thing.

• Solnedgången var fantastisk = The sunset was fantastic

  • this describes the sunset itself

• Solnedgången gjorde upplevelsen fantastisk = The sunset made the experience fantastic

  • this describes the effect of the sunset on the experience

So the original sentence is a bit more specific: it says the sunset improved or transformed the whole experience.