Dit kontor er lyst, men mit er roligt.

Your office is bright, but mine is quiet.

Breakdown of Dit kontor er lyst, men mit er roligt.

• være: to be
• men: but
• kontoret: the office
• rolig: quiet (calm)

Questions & Answers about Dit kontor er lyst, men mit er roligt.

Why is it dit kontor and not din kontor?

Because kontor is a neuter noun in Danish: et kontor.

Danish possessives change to match the gender and number of the noun they describe:

• min / din / sin for common gender singular nouns
• mit / dit / sit for neuter singular nouns
• mine / dine / sine for plurals

So:

• en bil → din bil
• et kontor → dit kontor

That is why the sentence has dit kontor.

Why is it mit in the second half, with no noun after it?

Here mit stands on its own and means my one / mine, referring back to kontor.

So:

• Dit kontor er lyst, men mit er roligt means
• Your office is bright, but mine is quiet/calm

The full version would be:

• Dit kontor er lyst, men mit kontor er roligt

Danish often leaves out a repeated noun when it is already clear from context.

Why do lyst and roligt end in -t?