Flexible use of interrogative pronouns 1: “... 就 ...”
In Chinese, the particle 就 (jiù) can be used to connect two identical interrogative pronouns (such as 什么, 哪儿, 谁, 哪天). Rather than asking a question, this structure refers to an indefinite person, object, time, or place, indicating that the outcome in the second clause depends entirely on the condition in the first clause (equivalent to “whatever...”, “wherever...”, “whoever...”, “whichever...” in English).
Grammar Rules
Rule 1: The same interrogative pronoun is used twice, referring to the exact same entity.
Rule 2: If both clauses share the same subject, the second subject can be omitted.
Rule 3: If the clauses have different subjects, the second subject must be placed BEFORE 就.
Grammar Structure
[Interrogative Pronoun] + ... + (Subject 2) + 就 + Verb + [Interrogative Pronoun]
Example Sentences
什么东西便宜我就买什么。
I will buy whatever is cheap.
你哪天有时间就哪天来我家吧。
Come to my house whichever day you have time.
谁喜欢他他就喜欢谁。
He likes whoever likes him.
你坐哪儿我就坐哪儿。
Wherever you sit, I'll sit.