YOU SAID:

I hate pineapples when they are on pizza

INTO JAPANESE

パイナップルがピザの上にいるのは嫌いだ

BACK INTO ENGLISH

I don't like pineapples on pizza.

INTO JAPANESE

私はピザのパイナップルが好きではありません。

BACK INTO ENGLISH

I don't like pineapple on pizza.

INTO JAPANESE

私はピザのパイナップルが好きではありません。

BACK INTO ENGLISH

I don't like pineapple on pizza.