Question about the Grammar of Possession

[LoveHighlighter]

Hello! Recently I've been talking to a friend who doesn't speak any English at all, and the topic came up where he's asking to see something I am not quite clear about.
So (as an extremely bad example) if he asks ケーキ見たいわん would it be correct to ask わたしのケーキ to clarify?
Also, as a follow up, what would be the correct way to ask, "Are you sure? It's not that great..."
I am sorry if this makes no sense at all, but I would appreciate any help! ^^

 

[Toritoribe]

So (as an extremely bad example) if he asks ケーキ見たいわん would it be correct to ask わたしのケーキ to clarify?

Yes, わたしのケーキ works perfectly fine. Just わたしの? is also OK.

(BTW, where did you get the expression わん from??)

Also, as a follow up, what would be the correct way to ask, "Are you sure? It's not that great..."

It depends on what "it" refers to (cake, in your example).

 

[LoveHighlighter]

Alright, thank you!
I just used the sentence structure he used, replacing face with cake ^^;
It confused me for a moment, haha

And the 'it' would refer to face
Thank you again for your help!

 

[Toritoribe]

I would say ほんとに？でも普通だよ。