Learn Dutch: Omdat de deskundige hen bekritiseert, zijn zij teleurgesteld. - Because the expert criticizes them, they are disappointed.

In strict, formal written Dutch, hen is used for direct objects and after prepositions, while hun is used for indirect objects without a preposition. In this sentence, 'them' is the direct object receiving the action of the verb bekritiseert (criticizes). Therefore, hen is the correct choice.

Why is the word order zijn zij instead of zij zijn in the second half of the sentence?

This happens because of the Dutch V2 (verb-second) rule. The entire first clause (Omdat de deskundige hen bekritiseert) acts as the first 'block' of information in the main sentence. To keep the main verb (zijn) in the second position, it must come immediately after the comma, forcing the subject (zij) to move after the verb.

Why is the verb bekritiseert placed at the end of the first clause?

The first clause is introduced by omdat (because), which is a subordinating conjunction. Subordinating conjunctions always push the conjugated verb to the very end of their specific clause.

Could I use the unstressed pronoun ze instead of zij in the second half?