Pokud bude zítra pršet, budu doma s rodinou.

They are both forms of the verb být (to be), but for different persons:

• bude = he/she/it will be
• budu = I will be

In this sentence:

• bude zítra pršet = literally it will rain tomorrow
• budu doma = I will be at home

Czech often uses být to form the future with some verbs, and budu also works as the normal future of to be.

Because pršet is an imperfective verb, and in Czech many imperfective verbs form the future with:

• a future form of být
• • the infinitive

So:

• bude pršet = it will rain

This is the normal way to express future rain in Czech.

Because Czech does not need a dummy subject like English it in weather expressions.

English says:

• It will rain

Czech simply says:

• Bude pršet

There is no separate word corresponding to English it here.

Pokud means if. It is correct and natural, especially in neutral or slightly more formal language.

Other common options are:

• jestli = if
• když = often when, sometimes if depending on context

For a straightforward future condition, pokud works very well:

• Pokud bude zítra pršet, budu doma s rodinou.

A more conversational version might also use jestli:

• Jestli bude zítra pršet, budu doma s rodinou.

Because the sentence has two clauses:

1. Pokud bude zítra pršet
2. budu doma s rodinou

In Czech, a subordinate clause introduced by words like pokud is separated by a comma.

So the comma is required here.

Yes, zítra can move. Czech word order is more flexible than English.

Here:

• Pokud bude zítra pršet...

is perfectly natural.

You could also hear:

• Pokud zítra bude pršet...
• Pokud bude pršet zítra... (less neutral in many contexts)

The most natural placement usually depends on emphasis and style. In this sentence, bude zítra pršet sounds very normal.

Doma means at home, in the general sense. That is the usual word when talking about being at home.

• budu doma = I will be at home

V domě means in the house/building, which focuses more on physical location inside a building.

So if you mean I’ll stay home, Czech normally uses doma, not v domě.

Because the preposition s meaning with requires the instrumental case.

The noun rodina changes in the instrumental singular:

• rodina → rodinou

So:

• s rodinou = with the family / with my family

This is a very common Czech pattern:

• s kamarádem = with a friend
• s maminkou = with mom
• s rodinou = with family

Because Czech usually drops subject pronouns when the verb ending already makes the subject clear.

• budu already means I will be

So já is not necessary.

You can add já for emphasis or contrast:

• Pokud bude zítra pršet, já budu doma s rodinou.

That sounds more like As for me, I’ll be at home with my family.

Yes. You can say:

• Budu doma s rodinou, pokud bude zítra pršet.

That means the same thing.

The version with the if-clause first is often the most neutral:

• Pokud bude zítra pršet, budu doma s rodinou.

If the subordinate clause comes second, it is still separated by a comma.

It most naturally refers to one specific future situation:

• If it rains tomorrow, I’ll be at home with my family.

That is why zítra is important: it anchors the sentence to a specific time.

Without zítra, the sentence could sound more general depending on context.

Yes, it can be tricky for English speakers.

A rough guide:

• pršet sounds approximately like PR-shet

Key points:

• p and r are both pronounced clearly at the start
• š sounds like English sh
• e is like e in met
• t is a clear final t

The hardest part is often the prš cluster. It helps to practice slowly:

• pr
• prš
• pršet

Yes, absolutely.

• Jestli bude zítra pršet, budu doma s rodinou.

This is natural and common in spoken Czech.

A simple way to think about it:

• pokud = a bit more neutral/formal
• jestli = very common in everyday speech

Both are correct here.

Because rodina means family as one group or unit.

So:

• s rodinou = with the family / with my family

Even though a family contains multiple people, Czech treats rodina as a singular noun, just as English does in my family.

If you wanted to mention several families, then you would use a plural form instead.