YOU SAID:

I have no idea how many fish there are in my bucket but I'm sure it's a lot.

INTO JAPANESE

バケツに何匹の魚がいるのか分かりませんが、たくさんあると確信しています。

BACK INTO ENGLISH

I don't know how many fish there are in the bucket, but I'm sure there are a lot.

INTO JAPANESE

バケツに何匹の魚がいるかはわかりませんが、たくさんいると確信しています。

BACK INTO ENGLISH

I don't know how many fish there are in the bucket, but I'm sure there are a lot.