Breakdown of Är det kaptenen som dribblar?
vara
to be
det
it (neuter)
som
who / which / that (relative pronoun)
kaptenen
the captain
Questions & Answers about Är det kaptenen som dribblar?
How does the cleft sentence structure change when it becomes a question?
In a normal statement, the cleft structure is Det är kaptenen som dribblar (It is the captain who is dribbling). To turn this into a yes/no question, you just swap the subject (det) and the verb (är), exactly like you do in English: Är det... (Is it...). The rest of the sentence, starting with the emphasized word (kaptenen), stays exactly the same.
Why say Är det kaptenen som dribblar? instead of just asking Dribblar kaptenen?
It is all about emphasis! If you ask Dribblar kaptenen? (Is the captain dribbling?), you are simply asking what the captain is doing. But by using the cleft structure (Är det kaptenen som...), you are emphasizing who is doing the action. You already see someone dribbling, and you want to confirm if that specific person is the captain.
Why do we need the word som here? Can I ever drop it?
In this sentence, som acts as the subject of the second part (the one doing the dribbling). In Swedish, you can never drop som when it acts as the subject of its clause. It works just like "who" or "that" in English here. Without it, the sentence would fall apart grammatically!
Does the emphasized noun in a cleft sentence always have to be in the definite form like kaptenen?