Potřebuji více informací.

In Czech, the subject pronoun is often omitted because the verb ending already tells you who is doing the action.

• potřebuji = I need
• the ending -ji shows 1st person singular: I

So Potřebuji více informací is a complete sentence by itself.

You can say Já potřebuji více informací, but adding já usually gives extra emphasis, like:

• I need more information.
• not someone else

In neutral speech, leaving out já is more natural.

Potřebuji is the 1st person singular present tense of the verb potřebovat, meaning to need.

A few useful forms:

• potřebuji = I need
• potřebuješ = you need
• potřebuje = he/she/it needs
• potřebujeme = we need
• potřebujete = you need / you all need / formal you need
• potřebují = they need

In everyday speech, you may also hear potřebuju instead of potřebuji. Both mean the same thing:

• potřebuji = a bit more standard/written
• potřebuju = very common in speech

Both více and víc mean more.

The difference is mostly style:

• více = more standard, neutral, common in writing
• víc = shorter, more informal, very common in speech

So:

• Potřebuji více informací. = standard
• Potřebuji víc informací. = natural, a bit more conversational

Both are correct.

Because after více (more), Czech normally uses the genitive.

So:

• informace = information / piece of information / information(s)
• informací = genitive plural

That is why you get:

• více informací = more information

This is a very common pattern in Czech. Similar examples:

• hodně času = a lot of time
• málo peněz = little / not much money
• několik lidí = several people

So the key idea is:

• quantity word + noun in genitive

The base word informace can be tricky because its singular and plural nominative look the same:

• ta informace = the information / the piece of information
• ty informace = the information / the pieces of information

In your sentence, however, the form is informací, which is genitive plural.

So grammatically, Czech is treating it as plural after více:

• více informací = literally more of informations / more pieces of information

Even though English usually uses information as an uncountable noun, Czech often handles it more like countable items in many contexts.

Yes, and it means something slightly different.

• Potřebuji více informací. = I need more information
• Potřebuji další informace. = I need additional / further information

The difference is subtle:

• více emphasizes a greater amount
• další emphasizes more/another set added to what already exists

In many situations, both work well.

A simple learner-friendly pronunciation guide would be:

PO-trzhe-boo-yi VEE-tse IN-for-ma-tsee

A few important points:

• Czech stress is almost always on the first syllable:
  • POtřebuji
  • VÍce
  • INformací
• c in více sounds like ts
• í is a long vowel, so více starts with a long vee
• ř in potřebuji is a famous Czech sound; learners often approximate it at first

If ř is difficult, that is completely normal. It takes time.

Yes, Czech word order is more flexible than English, but the basic version here is very natural:

• Potřebuji více informací.

This is the most neutral way to say it.

Other word orders are possible, but they can shift emphasis:

• Více informací potřebuji.
  This sounds more marked, as if emphasizing more information
• Informací potřebuji více.
  Also possible, with a special focus or contrast

For a learner, the safest choice is the standard neutral order:

• verb + quantity + noun

Because Czech has no articles.

So Czech does not have direct equivalents of a, an, or the in normal grammar.

That means:

• Potřebuji více informací.

can mean something like:

• I need more information.
• I need more of the information.
• I need additional information.

The exact nuance depends on context. Czech speakers rely on context, word order, and sometimes extra words to make the meaning clear.

Yes. Potřebuji více informací. is neutral and works well in both.

You could use it:

• in an email
• in a shop
• in an office
• in conversation

It sounds polite and standard. If you want to sound even more formal or polite, you might expand it, for example:

• Potřebuji více informací o tomto produktu.
• Potřeboval bych více informací.

That second version, Potřeboval bych..., often sounds softer and more polite, similar to I would need / I’d like some more information.

Normally, potřebovat takes the accusative direct object.

For example:

• Potřebuji informaci. = I need a piece of information.
• Potřebuji pomoc. = I need help.
• Potřebuji čas. = I need time.

But in your sentence, the noun is influenced by více, and quantity words like více typically require the genitive:

• Potřebuji informaci. → accusative
• Potřebuji více informací. → genitive plural after více

So the case changes because of the quantity expression, not because potřebovat itself suddenly works differently.