YOU SAID:

I guess I'm stupid, but only if you say so.

INTO JAPANESE

私は愚かだと思うが、あなたがそう言う場合のみ。

BACK INTO ENGLISH

I think stupid but only if you say so.

INTO JAPANESE

私は愚かだと思うが、あなたがそう言う場合にのみ。

BACK INTO ENGLISH

I think stupid but only if you say so.