Obě rekvizity jsou na stole.

Both props are on the table.

Breakdown of Obě rekvizity jsou na stole.

• být: to be
• na: on
• stůl: the table
• rekvizita: the prop

Questions & Answers about Obě rekvizity jsou na stole.

Why is it obě and not oba?

Because rekvizity is a feminine plural noun.

Czech both changes form depending on gender:

• oba = masculine
• obě = feminine and neuter

The singular noun is rekvizita, which is feminine, so with the plural rekvizity you use obě:

• obě rekvizity = both props

If the noun were masculine, you would normally use oba instead.

What case is rekvizity here?

Here rekvizity is nominative plural, because it is the subject of the sentence.

You can tell because:

• it is the thing being talked about
• the verb jsou means are, agreeing with a plural subject

So the structure is:

• obě rekvizity = the subject
• jsou na stole = are on the table

A useful detail: rekvizity can also look like another case form in other contexts, but in this sentence it is clearly nominative plural.

Why does rekvizita become rekvizity in the plural?