YOU SAID:
hi i am good at dancing
INTO JAPANESE
こんにちは私はダンスが得意です
BACK INTO ENGLISH
Hello I am good at dance
INTO JAPANESE
こんにちはダンスが得意です
BACK INTO ENGLISH
Hello dance is good
INTO JAPANESE
こんにちはダンスはいいです
BACK INTO ENGLISH
Hello dance is a good
INTO JAPANESE
こんにちはダンスは良いです
BACK INTO ENGLISH
Hello dance is a good
That didn't even make that much sense in English.