YOU SAID:

I used to think that metal existed, but not anymore

INTO JAPANESE

かつては金属が存在すると思っていたが、今は存在しない。

BACK INTO ENGLISH

I used to think that metal existed, but it doesn't exist now.

INTO JAPANESE

以前は金属が存在すると思っていたが、今は存在しない。

BACK INTO ENGLISH

I used to think that metal existed, but it doesn't exist now.