Můj bratr dnes jenom spí doma.

Today my brother is just sleeping at home.

Breakdown of Můj bratr dnes jenom spí doma.

• můj: my
• dnes: today
• spát: to sleep
• bratr: the brother

Questions & Answers about Můj bratr dnes jenom spí doma.

Why is it můj bratr and not mého bratra?

Czech uses cases, and in this sentence můj bratr is the subject, so it must be in the nominative case.

• můj bratr = nominative (who is doing the action? my brother)
• mého bratra = genitive/accusative (used for objects, after some prepositions, etc.)

Examples:

• Můj bratr dnes jenom spí doma.
  → My brother is the one doing the sleeping → nominative.

Compare:

• Vidím svého bratra. – I see my brother.
  Here, svého bratra is the object of vidím, so it’s in accusative, not nominative.

What is the difference between jenom and jen? Are both correct?

Yes, both jenom and jen are correct and very common. They both mean “only/just”.

• jen is a bit shorter and slightly more colloquial.
• jenom can feel a bit more neutral or slightly emphasized in some contexts, but in everyday speech they often sound interchangeable.

In your sentence, you could say:

• Můj bratr dnes jenom spí doma.
• Můj bratr dnes jen spí doma.

Both are fine and mean the same thing in normal conversation.

Does the position of jenom change the meaning? For example, jenom spí doma vs spí jenom doma?