Hi. I hope someone can help me explain why it's correct to say:
It would be nice if he could get a room of his own.
It would be nice if he could get a room of his.
Also, you could say:
Have you seen that dog of his?
Have you seen that dog of his own?
I'm having trouble explaining to a student why you have to use "own" in one case and not the other. I would appreciate it if someone can help me out. Thanks!
As a learner of English, I should advise you to take this answer with a grain of salt.
But then again, I would say: 'of his own' means having some control over it, while 'of his' would mean owning it, being its possessor.
'that dog of his' = he is the owner of the dog
Just a wild-goose guess, being a non-native speaker.