YOU SAID:

just wanna check how good you are

INTO JAPANESE

あなたがどれだけ上手いかチェックしたいだけです

BACK INTO ENGLISH

I just want to check how good you are

INTO JAPANESE

私はあなたがどれだけ上手いかチェックしたいだけです

BACK INTO ENGLISH

I just want to check how good you are