whose - correct spelling
Note: Good writers use whose as the possessive case of which to avoid a stilted “of which” construction. Those who use the latter insist that whose must refer to an animate antecedent, i.e., a person or other living thing. See the examples below.
Grammar.com’s section on Problem Words discusses whose and who’s. Click here for that discussion.
Example: They liked to visit Washington, whose monuments and museums were open to all. relative pronoun
Example: They liked to visit Washington, the monuments and museums of which were open to all. (Stilted version.)
Example: Whose book is this? interrogative pronoun
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