Na internetu često čitam poruke.

On the internet, I often read messages.

Breakdown of Na internetu često čitam poruke.

• čitati: to read
• na: on
• često: often
• internet: internet

Questions & Answers about Na internetu često čitam poruke.

Why is it na internetu and not some other preposition?

Na internetu is the usual Serbian way to say on the internet. Even though English also uses on, the important thing in Serbian is that na is simply the standard preposition here.

After na meaning location, Serbian uses the locative case, so internet becomes internetu:

• internet → basic dictionary form
• na internetu → on the internet

This is similar to other location phrases such as:

• na stolu = on the table
• na poslu = at work / at the workplace

So in this sentence, na internetu is a fixed, natural location expression.

What case is internetu?

Internetu is in the locative singular.

The noun is internet (masculine). After na when it means in/on/at a location, Serbian normally uses the locative:

• internet → nominative
• na internetu → locative

So the pattern is:

• na + locative for location
• na + accusative for movement toward something

For example:

• Sam na internetu. = I am on the internet.
• Idem na internet. = I am going onto the internet.
  This second one is less common in everyday speech than the location phrase, but it shows the case contrast.

What does često mean grammatically, and where does it go in the sentence?