Which is correct? If both are correct, is there any difference between the two?
I know the problem of him (or his) not getting enough sleep.
I know his problem of not getting enough sleep.
Taka I know the problem of him/his not getting enough sleep. You can use the word his if you intend to be extremely formal. You can use the word him if you intend to be informal and speak in a natural way.
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TakaI know the problem of him/his not getting enough sleep.
You can use the word his if you intend to be extremely formal. You can use the word him if you intend to be informal and speak in a natural way.