Sumarið er hlýtt í borginni.

to be

Breakdown of Sumarið er hlýtt í borginni.

• í: in
• sumarið: the summer
• hlýtt: warm

Questions & Answers about Sumarið er hlýtt í borginni.

Why does sumarið end with -ið?

In Icelandic, definiteness (“the”) is marked by a suffix attached to the noun rather than a separate word.

• Sumar is the indefinite form (“summer,” a concept)
• Sumarið is the definite form (“the summer”)
  Here sumarið is nominative singular neuter, so it takes -ið to mean the summer.

Why is the adjective hlýtt spelled with -tt at the end instead of just -t?

Adjectives must agree with the noun they modify in gender, number, and case.

• Sumarið is neuter singular nominative.
• The strong-declension adjective for warm is hlýr (masculine), hlý (feminine), hlýtt (neuter).
  Thus in neuter nominative singular the correct ending is -tt, giving hlýtt.

Why is í borginni in the dative case?

The preposition í can trigger two cases:

• Accusative when expressing motion into something
• Dative when expressing static location in something
  Since we are talking about being in the city (location, not movement), í takes the dative.
  Borg (city) in definite dative singular becomes borg–+inni → .