Are there any set phrases or expressions where 'what' or 'which' is always used, regardless of the general rules?

Nov 28, 2016 ... For instance, when your friend asks what/which class you're taking, either usage is acceptable if we're referring to many possible options. If ... Nov 25, 2020 ... Although you can sometimes use “what” and “which” interchangeably, there are certain instances where only one of these words is correct. Feb 21, 2025 ... What's the difference between whose and who's? Whose is the possessive form of the pronoun who, whereas who's is a contraction linking the words ... Jan 11, 2023 ... This is the noun or noun phrase that they stand for. The antecedent of an interrogative pronoun is the answer to the question. Nov 26, 2018 ... Learn the difference between 'what' and 'which with English In A Minute! Do you often confuse what and which? Fear not! Listen to this episode from Illini Inquirer Podcast: An Illinois Fighting Illini athletics podcast on Spotify. Jeremy Werner previews Illinois football vs. "That" vs Which: Difference and Comparison - Basic English Grammar. Learn the difference between "that" and "which". Oct 8, 2009 ... VS stands for Victor Surperb. That is what they used to call the gut stings and what VS stands for. May 6, 2019 ... While fun to fly, precursor ships kinda suck for missions. The turret is short range (comparatively) and targets die before you really get any ... “What” is open-ended and general and “which” is more closed and specific, ie asking for a choice between a specific, limited number of items.