Bu gömleği tanımıyorum. O kimin?
- I don't recognize this shirt. Whose is it?
Bunlar kimin kitapları?
- Whose books are these?
Whose wallet is this?.
This is the man whose dog caused the accident. (=This man's dog caused the accident.).
We saw several houses whose roofs are falling off. (=The roofs are falling off several houses we saw.).