YOU SAID:
Going to work sick is not okay.
INTO JAPANESE
病気で仕事に行くのはよくありません。
BACK INTO ENGLISH
It's not good to go to work when you're sick.
INTO JAPANESE
病気のときに仕事に行くのは良くありません。
BACK INTO ENGLISH
It's not good to go to work when you're sick.
You've done this before, haven't you.