YOU SAID:

never in my life have i seen a dog so adorable

INTO JAPANESE

私は人生でこんなに可愛い犬を見たことがない

BACK INTO ENGLISH

I've never seen such a cute dog in my life.

INTO JAPANESE

こんなにかわいい犬を見たことがない。

BACK INTO ENGLISH

I've never seen such a cute dog.

INTO JAPANESE

そんな大きな犬は見たことが無い。

BACK INTO ENGLISH

I've never seen so big a dog.

INTO JAPANESE

そんな大きな犬は見たことが無い。

BACK INTO ENGLISH

I've never seen so big a dog.