Německá síť nabízí tuto službu.

Because německá has to agree with síť.

• síť is a feminine singular noun.
• Czech adjectives change their endings to match the noun in gender, number, and case.

So:

• německý = masculine singular
• německá = feminine singular
• německé = neuter singular / some plural forms

Since the subject is síť, the adjective must be německá.

There are two main parts:

• Německá síť = nominative singular
• tuto službu = accusative singular

Why?

• The subject of the sentence is síť, so it is in the nominative.
• The thing being offered, službu, is the direct object, so it is in the accusative.

So the structure is:

• [subject in nominative] + [verb] + [direct object in accusative]

Because tuto službu is the accusative form, while tato služba is the nominative form.

Compare:

• tato služba = this service as a subject
• tuto službu = this service as a direct object

And similarly:

• služba = nominative
• službu = accusative

Since the sentence says that the network offers the service, service is the thing receiving the action, so Czech uses the accusative: tuto službu.

Yes, tuto is correct standard Czech, but tu službu is often more common in everyday language.

Both mean this service in the accusative feminine singular:

• tuto službu = a bit more formal, careful, or emphatic
• tu službu = very common in normal speech and writing

So this sentence sounds perfectly correct, but slightly more formal or polished than the most conversational version.

Both are feminine, but they belong to different noun patterns.

• síť is a feminine noun ending in a consonant. It behaves like a soft feminine noun.
• služba is a feminine noun ending in -a. It behaves like a more typical hard feminine noun.

That is why their case endings look different:

• síť stays síť in the nominative singular
• služba changes to službu in the accusative singular

This is very common in Czech: two nouns can have the same gender but still decline differently.

Nabízí is:

• 3rd person singular
• present tense
• from the verb nabízet = to offer

So it matches the singular subject síť:

• já nabízím = I offer
• ty nabízíš = you offer
• on/ona/ono nabízí = he/she/it offers

Since síť is singular, Czech uses nabízí.

Because Czech present tense often covers both ideas.

Nabízí can mean:

• offers
• is offering

Which English version sounds best depends on the context.

Also, nabízet is an imperfective verb, so it naturally works for:

• general repeated action
• ongoing action
• a current state or activity

So without extra context, nabízí is simply the normal present-tense form.

Yes. Czech word order is more flexible than English because the cases show the grammatical roles.

This sentence can stay as:

• Německá síť nabízí tuto službu.

But Czech could also say:

• Tuto službu nabízí německá síť.

Both are grammatical. The difference is mostly emphasis:

• starting with Německá síť focuses more naturally on the subject
• starting with Tuto službu puts more emphasis on the service

English usually depends more on word order to show subject and object, but Czech depends more on case endings.

The endings tell you.

• síť is in the nominative, which is the usual case for the subject
• službu is in the accusative, which is the usual case for the direct object

Even if the order changed, the roles would still be clear because of the forms:

• služba → službu shows object marking
• síť stays nominative here, so it is the subject

This is one of the biggest differences from English.

Because in Czech, adjectives of nationality are usually not capitalized.

So:

• německá síť = German network
• český výrobek = Czech product
• anglická kniha = English book

They are written with a capital letter only at the beginning of a sentence or if part of an official name.

This is different from English, where German, Czech, and English are capitalized.

A rough pronunciation guide is:

NYEH-mets-kah seet’ nah-BEE-zee TOO-to SLUZH-boo

A few important points:

• ě in Německá changes the sound after n, making it sound like ně
• síť has a long í, so hold that vowel a little longer
• ť is a soft t sound
• nabízí has long í vowels
• ž in službu sounds like the s in measure
• u in službu is short

If you want to sound natural, pay special attention to vowel length and the soft consonant in síť.

No. Síť can mean several related things, depending on context:

• a physical net
• a network
• a chain of stores or services
• a connected system more generally

So in a sentence like this, síť is often understood as something like a network or chain, not a literal fishing net.

That kind of broader meaning is very common in Czech.