YOU SAID:

I wish I knew my tea was cold

INTO JAPANESE

私のお茶が冷たいことを知っていればいいのに

BACK INTO ENGLISH

I wish I knew my tea was cold.

INTO JAPANESE

紅茶が冷たいのを知っていればよかったのに。

BACK INTO ENGLISH

I wish I had known that tea was cold.

INTO JAPANESE

お茶が冷たいことを知っていたらよかったのに。

BACK INTO ENGLISH

I wish I had known that tea was cold.