YOU SAID:

i hate classes they sick

INTO JAPANESE

私は、彼らが病気であるクラスが嫌いです

BACK INTO ENGLISH

I dislike classes where they are sick

INTO JAPANESE

彼らが病気になっている授業が嫌い

BACK INTO ENGLISH

I hate classes where they're sick.

INTO JAPANESE

彼らが病気になっている授業は嫌いだ。

BACK INTO ENGLISH

I don't like the classes in which they are sick.

INTO JAPANESE

彼らが病気になっている授業が好きではない。

BACK INTO ENGLISH

I don't like the classes in which they are sick.