Is this glass clean? I can't tell.

How to say “Is this glass clean? I can't tell.” in Japanese

In Japanese

このコップってきれいなやつ？見(み)てもわかんないんだけど。

Kono koppu tte kirei na yatsu? Mite mo wakannai n da kedo.

Is this glass clean? I can't tell. in other languages