YOU SAID:

I don't like math class, but I do like science class

INTO JAPANESE

私は数学の授業は好きではないが、科学の授業は好きだ

BACK INTO ENGLISH

I don't like math classes, but I like science classes

INTO JAPANESE

私は数学の授業は好きではないが、理科の授業は好きだ

BACK INTO ENGLISH

I don't like math classes, but I like science classes