Společenskou místnost máme od pátku do neděle.

Because it is the direct object of máme (we have), so it has to be in the accusative case.

• společenská místnost = nominative, the dictionary form
• společenskou místnost = accusative

What changes?

• společenská → společenskou because the adjective is feminine singular accusative
• místnost stays místnost because this type of feminine noun has the same form in nominative and accusative singular

So the sentence is literally structured as [common room - accusative] [we have] [from Friday to Sunday].

Máme is the 1st person plural present tense of mít (to have).

Here it can mean more than simple ownership. Depending on context, it can mean:

• we have
• we have use of
• we have available
• we have reserved

So the sentence may suggest that the common room is available to us / assigned to us / booked for us from Friday to Sunday.

In Czech, subject pronouns are often left out because the verb ending already shows the person.

• mám = I have
• máš = you have
• má = he/she/it has
• máme = we have

So máme already clearly means we have, and my (we) is unnecessary unless you want special emphasis.

This is the normal Czech pattern for expressing a time span:

• od = from
• do = to / until

Both prepositions require the genitive case, so:

• pátek → pátku
• neděle → neděle

So:

• od pátku = from Friday
• do neděle = until Sunday / to Sunday

This is a very common structure in Czech.

Because both nouns are in the genitive, but different nouns form that case differently.

• pátek (Friday) → pátku in the genitive singular
• neděle (Sunday) → neděle in the genitive singular

So neděle is not staying in the nominative by accident; it just happens that its genitive singular has the same spelling as its basic form.

In normal everyday use, yes, usually.

A speaker would generally understand this as covering the period starting on Friday and lasting through Sunday. In English, a natural equivalent is often:

• from Friday to Sunday
• Friday through Sunday

As in English, the exact practical limits can depend on context, but the usual interpretation includes both endpoint days.

Because Czech word order is more flexible than English word order.

Both are possible:

• Máme společenskou místnost od pátku do neděle.
• Společenskou místnost máme od pátku do neděle.

Putting společenskou místnost first gives it more prominence. It can sound like:

• As for the common room, we have it from Friday to Sunday
• The common room is what we have from Friday to Sunday

So this word order is not random; it affects focus and emphasis, not the basic meaning.

Literally, it means something like social room, but the natural English translation is usually:

• common room
• lounge
• recreation room
• community room

The best translation depends on the setting:

• in a hostel, school, or dorm: common room
• in a hotel or building: lounge or community room

So this is a normal Czech expression for a shared room used for meeting, relaxing, or group activities.

Because in Czech, days of the week are not capitalized unless they begin a sentence.

So:

• pátek = Friday
• neděle = Sunday

This is different from English, where Friday and Sunday are always capitalized.

Not by itself. On its own, it most naturally refers to one particular period from Friday to Sunday.

If you wanted to clearly say every weekend, Czech would usually add something like:

• každý víkend = every weekend
• každý týden od pátku do neděle = every week from Friday to Sunday

So without extra wording, the sentence is usually understood as referring to a specific Friday-to-Sunday period.