Hadřík je na stole.

to be

Breakdown of Hadřík je na stole.

• na: on
• stůl: the table
• hadřík: the cleaning cloth

Questions & Answers about Hadřík je na stole.

Why is stůl changed to stole in this sentence?

Because na means on here in the sense of location, and Czech uses the locative case after na when something is in a place / on a place.

• dictionary form: stůl = table
• after na for location: na stole = on the table

So:

• Hadřík je na stole. = The cloth is on the table.

This is a very common pattern:

• na stole = on the table
• na židli = on the chair
• na zemi = on the ground

What case is stole?

It is the locative singular form of stůl.

After na, Czech can use two different cases:

• locative for location: where something is
• accusative for direction: where something is going

So compare:

• na stole = on the table
• na stůl = onto the table

In your sentence, the cloth is already there, so Czech uses na stole.

Why is there no word for the or a?