YOU SAID:

My dog he can do the can can better than cat can but my goldfish finds it very difficult

INTO JAPANESE

彼ができる犬は猫よりもできるが、金魚はそれが非常に難しいと思う

BACK INTO ENGLISH

Dogs he can do are better than cats, but goldfish find it very difficult

INTO JAPANESE

彼ができる犬は猫よりも優れていますが、金魚はそれを非常に難しいと感じます

BACK INTO ENGLISH

Dogs he can do are better than cats, but goldfish find it very difficult