Questions & Answers about मुझे इस खबर पर शक है।
Because Hindi often uses a different structure for feelings, perceptions, and mental states.
In English, you say I doubt this news.
In Hindi, the idea is often expressed more like:
- to me
- about this news
- doubt exists
- about this news
So मुझे is the dative/oblique form meaning to me.
This pattern is very common in Hindi:
- मुझे डर है = I am afraid / I have fear
- मुझे याद है = I remember
- मुझे शक है = I have doubt / I suspect
You could think of मुझे here as the natural Hindi way to mark the person experiencing the doubt.
Also, मुझे and मुझको are often interchangeable:
- मुझे इस खबर पर शक है
- मुझको इस खबर पर शक है
Both are natural.
Because यह changes to इस before a postposition.
Hindi demonstratives have a direct form and an oblique form.
For this, the forms are:
- यह = direct
- इस = oblique
Since खबर is followed by the postposition पर, the whole noun phrase must be in the oblique form: