Spolubydlící je v kuchyni.

It can be either. This word can refer to a male roommate or a female roommate, and in this sentence alone you cannot tell which one it is.

Other words in the sentence can show the gender in a bigger context, for example:

• můj spolubydlící = my male roommate
• moje spolubydlící = my female roommate

Later in a conversation, past tense or adjectives may also reveal the gender.

You know because of the verb je, which is singular.

• je = is
• jsou = are

So:

• Spolubydlící je v kuchyni. = one roommate is in the kitchen
• Spolubydlící jsou v kuchyni. = roommates are in the kitchen

This is useful because spolubydlící can look the same in singular and plural.

It is in the nominative case, because it is the subject of the sentence, the person who is somewhere.

In this sentence:

• spolubydlící = subject
• je = verb
• v kuchyni = location

So the basic structure is:

[subject] + [is] + [location]

Je is the 3rd person singular form of být, which means to be.

So here it means is.

A few forms of být in the present tense are:

• jsem = I am
• jsi = you are
• je = he/she/it is
• jsme = we are
• jste = you are
• jsou = they are

In this sentence, je matches the singular subject spolubydlící.

Because after v when it means a location, Czech normally uses the locative case.

The basic dictionary form is:

• kuchyně = kitchen

But after v for a static location, it changes to:

• v kuchyni = in the kitchen

So the change is caused by case, not by a different meaning.

Usually v means in, inside, or sometimes at, depending on context. In this sentence, v kuchyni clearly means in the kitchen.

A very important contrast is:

• v kuchyni = in the kitchen, already there
• do kuchyně = into the kitchen, movement toward it

So Czech often distinguishes:

• location: v + locative
• movement into: do + genitive

That difference is very common and very important.

Because Czech does not have articles like English.

So Spolubydlící je v kuchyni can mean:

• The roommate is in the kitchen
• A roommate is in the kitchen

Which one sounds best depends on the context. English requires an article, but Czech does not.

Yes. Czech word order is more flexible than English word order because case endings and verb forms carry a lot of grammatical information.

The sentence:

Spolubydlící je v kuchyni.

is a neutral way to say it.

But you could also say:

V kuchyni je spolubydlící.

This puts more focus on the kitchen or sounds a bit more like There is a roommate in the kitchen.

So the original version is natural and straightforward, but not the only possible order.

A rough English-friendly guide is:

SPO-loo-bih-dlee-tsee yeh f KOO-khi-nyi

A few useful pronunciation notes:

• Czech stress is usually on the first syllable of a word.
• je sounds like yeh.
• ch in kuchyni is the throaty sound in Scottish loch or German Bach.
• ň is a soft ny sound, a bit like in canyon.
• In normal speech, v before k often sounds closer to f, so v kuchyni may sound like f kuchyni.