YOU SAID:
My dog is the cutest thing I've ever seen.
INTO JAPANESE
私の犬は私が今まで見たかわいいものです。
BACK INTO ENGLISH
My dog is the cutest thing I have ever seen.
INTO JAPANESE
私の犬は私が今まで見たかわいいものです。
BACK INTO ENGLISH
My dog is the cutest thing I have ever seen.
You should move to Japan!