YOU SAID:
yeah you're not as good as I thought
INTO JAPANESE
はい、あなたは私が思ったほど良くないです
BACK INTO ENGLISH
Yes, you're not as good as I thought
INTO JAPANESE
はい、あなたは私が思ったほど良くはありません
BACK INTO ENGLISH
Yes, you're not as good as I thought
You've done this before, haven't you.