International audienceThis paper examines two types of wh-questions with conjoined wh-words. In type 1 questions, all wh-words appear at the beginning of the interrogativeclause (kde a kdy jí viděl ? = 'where and when did he see her ?'). In type 2 questions, one or more wh-words appear at the beginning of the clause, and the wh-item introduced by the conjunction appears at the end of the clause (kde jí viděl a kdy? = 'where did he see her and when ?'). Ii is showed that conjoined wh-words in these two types of questions have different prosodic, syntactic, and semantic properties. It is then argued that these differences can be explained if we analyze type 1 coordination as clause internal coordination of wh-phrases, and type 2 coordination as resultting from coordination of two clauses with consequent ellipsis
