Je pan mistr hotový s práce?

The main verb is "je" 3sg. present tense form of být

The subject is the nominative form pan mistr.

The adjective hotový agrees in number, gender and case with the subject, thus in the masc. sg. nom. Je pan mistr hotový s ... means "Is the master-artisan done with...?"

The preposition "s" takes the instrumental; note that the long á shortens in the instr. sg., dat. pl, loc. pl. and instr. pl.)