YOU SAID:

I really wish that school was over

INTO JAPANESE

学校が終わったらいいのに

BACK INTO ENGLISH

I wish the school was over.

INTO JAPANESE

学校が終わったらいいのに。

BACK INTO ENGLISH

I wish I had finished school.

INTO JAPANESE

私は学校を終えていればよかったのに。

BACK INTO ENGLISH

I wish I had finished school.