Одинадцять людей у кімнаті.

in

Breakdown of Одинадцять людей у кімнаті.

• кімната: the room
• людина: the person
• одинадцять: eleven

Questions & Answers about Одинадцять людей у кімнаті.

Why is it людей and not люди?

Because after 5 and higher numbers in Ukrainian, the noun usually goes in the genitive plural.

So:

• один чоловік = one person
• два / три / чотири людини = two / three / four people
• п’ять людей = five people
• одинадцять людей = eleven people

Here, людей is the genitive plural form meaning of people.
The basic plural form люди would not be used after одинадцять.

What case is кімнаті, and why?

Кімнаті is in the locative case.

That is because the preposition у here means in, showing a location. After у / в when you mean where something is, Ukrainian often uses the locative:

• у кімнаті = in the room
• у школі = in the school
• у місті = in the city

The dictionary form is кімната, but after у it becomes у кімнаті.

Why is there no verb meaning are or there are?