W przyszłym tygodniu spotkamy się w muzeum.

Because after w meaning in/during for time expressions, Polish uses the locative case.

So:

• przyszły tydzień = next week (basic dictionary-style form)
• w przyszłym tygodniu = in next week / next week

Both words change:

• przyszły → przyszłym
• tydzień → tygodniu

This is very common in Polish:

• w poniedziałek = on Monday
• w tym tygodniu = this week
• w przyszłym miesiącu = next month

So w przyszłym tygodniu is the normal correct form here.

Tygodniu is the locative singular form of tydzień.

The noun tydzień means week, but after w in a time expression, it changes to locative:

• tydzień → tygodniu

This kind of change is something learners just have to get used to, because Polish nouns often change quite a bit across cases.

The full phrase works like this:

• w = in
• przyszłym = next, in locative singular
• tygodniu = week, in locative singular

So the whole phrase is literally something like in next week, though natural English is simply next week.

Because the two w phrases do two different jobs:

• w przyszłym tygodniu = next week / in the coming week → a time expression
• w muzeum = in the museum / at the museum → a place expression

So both are correct and natural.

The sentence structure is:

• W przyszłym tygodniu = time
• spotkamy się = we will meet
• w muzeum = place

English also often has both time and place in one sentence:

• Next week we’ll meet at the museum.

Spotkamy się means we will meet or we will meet each other / meet up.

It comes from the verb spotkać się, which is the normal Polish verb for to meet in the sense of people meeting one another.

Breakdown:

• spotkamy = we will meet
• się = a reflexive element that belongs with the verb

So the full verb is really spotkać się, not just spotkać in this meaning.

A very literal gloss might be:

• spotkamy się = we will meet ourselves / each other

But in normal English, you just say we will meet.

Not exactly. In this sentence, się is best understood as part of the verb spotkać się.

Polish often uses verbs with się where English does not use a separate word. Sometimes się is truly reflexive, and sometimes it is just part of how the verb is formed.

Here:

• spotkać can mean to meet someone / encounter someone
• spotkać się means to meet up / to meet one another

So in spotkamy się, się is necessary.

Examples:

• Spotkam Jana. = I will meet Jan. / I will run into Jan.
• Spotkam się z Janem. = I will meet with Jan.

In your sentence, spotkamy się means the people involved are meeting each other.

Because spotkać się is a perfective verb.

In Polish, perfective verbs do not have a true present tense. Their present-tense-looking forms actually refer to the future.

So:

• spotkam
• spotkasz
• spotka
• spotkamy
• spotkacie
• spotkają

all have future meaning.

That is why spotkamy się means we will meet, not we meet.

If you wanted an imperfective idea such as we will be meeting or a more ongoing/repeated sense, Polish would use a different verb, often with a compound future.

Yes. That is also correct.

Polish word order is more flexible than English, because case endings show grammatical relationships. The sentence

• W przyszłym tygodniu spotkamy się w muzeum.

puts the time first, which often feels natural if you want to set the scene: Next week...

But you can also say:

• Spotkamy się w przyszłym tygodniu w muzeum.

That version starts more directly with the action: We’ll meet...

Both are grammatical. The difference is mostly one of emphasis and information flow.

Because się usually comes after the verb or later in the clause, not at the very beginning.

So:

• spotkamy się = normal
• się spotkamy = possible in some contexts for emphasis, but not the neutral default
• starting a sentence with się is generally avoided

For learners, the safest pattern is:

• verb + się

So in this sentence, spotkamy się is exactly what you should expect.

It is locative singular, because after w meaning in/at a place, Polish uses the locative.

The useful thing here is that muzeum looks the same in both the nominative and locative singular.

So:

• muzeum = museum
• w muzeum = in/at the museum

Even though the form does not change visibly, the case still does.

This happens with some neuter nouns, especially ones ending in -um.

It can mean either in the museum or at the museum, depending on context.

In many situations, English uses at where Polish uses w:

• w szkole = at school / in school
• w pracy = at work
• w muzeum = at the museum / in the museum

So do not translate w too mechanically as only in. In this sentence, the most natural English meaning is often at the museum, but in the museum is also possible depending on context.

A rough pronunciation guide is:

vpshih-shwim tih-GO-nyoo spawt-KA-mih shyeh v moo-ZEH-oom

A few helpful notes:

• w is pronounced like English v
• prz sounds roughly like psh or pzh, depending on the speaker
• sz sounds like English sh
• ty is not like English tie; it is a short Polish ti sound
• się sounds roughly like shyeh
• muzeum is usually pronounced in three syllables: mu-ze-um

The hardest part for many learners is przyszłym because of the consonant cluster. It is completely normal if that word feels difficult at first.