1. You've constantly got to keep on at people about that.

2. Don't keep on at him about his handwriting or he'll get a complex.

3. Don't keep on at the children about this incident.

4. I will mend the lamp just don't keep on at me about it!

5. He used to keep on at me about the need to win.

6. I'll do it-just don't keep on at me about it!

7. If I didn't keep on at the children(http://sentencedict.com/keep on at.html), they'd never do their homework.

8. Please don't keep on at me.

9. If I didn't keep on at them, homework would never get done. 6.

10. You must keep on at your studies.

11. Unmerciful edge of knife keep on at innocent frontal eminence.

12. If he doesn't agree, just keep on at him until he does.

13. You are such a blockhead , I shall have to keep on at you for another hour.