Breakdown of Vissa dagar är svårare än andra.
vara
to be
dagen
the day
svår
difficult
annan
other / another (en-word)
Questions & Answers about Vissa dagar är svårare än andra.
Why does this sentence use vissa instead of några?
Vissa means "certain" (specific but unnamed days), whereas några usually just means "some" or "a few" in a general quantity sense. When you want to single out a particular subset of things, like "certain days", you use vissa.
Why is the noun in the indefinite form (dagar) rather than definite (dagarna)?
The word vissa (certain) points to an unspecified group, so it is followed by the indefinite plural form of the noun. It works just like words for quantities, such as många (many) or några (some), which also take the indefinite dagar.
How is the comparative adjective svårare (harder) formed here?
To say "harder", you take the base adjective svår (hard or difficult) and add the suffix -are. This is the standard way to form comparative adjectives in Swedish, very similar to adding "-er" in English.
Andra can mean both "second" and "others". How do we know which one it is here?
Context is key. Because the sentence uses a comparative word, svårare (harder), followed by än (than), we know it is comparing two groups of days. Therefore, andra must mean "others" rather than the number "second".