Learn Swedish: Vilken formulering hoppas du att tolken väljer? - Which wording do you hope the interpreter chooses?

The sentence merges a main clause (you hope) and a subordinate clause (that the interpreter chooses X). The object of the subordinate clause is the question phrase Vilken formulering. In a satsfläta, we extract this phrase from the subordinate clause and move it all the way to the first position of the main clause to form the question.

Why is the word order hoppas du but then tolken väljer?

This perfectly illustrates the difference between main and subordinate clauses. Because the question phrase Vilken formulering was moved to the very front of the sentence, it triggers the V2 rule in the main clause, swapping the subject and verb to hoppas du. However, att tolken väljer is a subordinate clause, which must maintain its strict subject-verb word order regardless of what happens in the main clause.

Why don't we need to add som after Vilken formulering?

When extracting a phrase from a subordinate clause in a satsfläta, you only insert som if the moved phrase is the subject of that subordinate clause. In this sentence, the interpreter (tolken) is the subject doing the choosing, and Vilken formulering is the object. Since we extracted the object, no som is required.

In English, we usually drop the word 'that' in this sentence. Can I drop att in Swedish?