1. Never speak ill of the dead. 

2. Don't speak ill of others.

3. Don't speak ill of the dead.

4. It's wrong to speak ill of the dead.

5. I realize one shouldn't speak ill of the dead.

6. She really believes you should never speak ill of the dead.

7. It seemed she found it difficult to speak ill of anyone.

8. Surely it is better to speak ill of the dead than of the living.

9. The candidates clearly did not want to speak ill of each other during the campaign.

10. When men speak ill of thee,(sentence dictionary) live so that nobody will believe them. Plato 

11. Please don't speak ill of me when I'm gone.

12. Don't speak ill of others behind their back.

13. Don't speak ill of your neighbors.

14. You should not speak ill of your friend.

15. It is not kind to speak ill of others behind their backs.

16. It's shabby to speak ill of others behind their backs.

17. We would rather speak ill of ourselves than not talk about ourselves at all.

18. You shouldn't get angry just because some people speak ill of you.

19. You shouldn't get angry only because some people speak ill of you.

20. To attack the character or reputation of; speak ill of; defame.

21. Her mom told the kid he shouldn't speak ill of others.

22. He has never been heard to speak ill of others.

23. We should not speak ill of others behind their backs.

24. It isn't right to speak ill of someone behind his back.

25. If men speak ill of you, live so that no one will believe them.

26. You wish to think all the world respectable, and are hurt if I speak ill of any body.

27. So they began to look at Nello coldly and speak ill of him.