keep after in a sentence

Examples

1. A : I'm afraid you'll just have to keep after it until the last offshoot dies.
2. But our guys did a pretty good job after that to keep after them, keep going.
3. Because I keep after my ad agencies.
4. It says there should be " Unanimous or nearly unanimous keep after a full listing period ".
5. I'm going to keep after it ."
6. My wife keeps after me, calling me after games, asking me what I'm going to eat ."
7. Frankfurt then took the lead for keeps after Justin's pass and Alcorn's extra point made it 16-13.
8. And we're going to keep after them until they are brought to justice and America is secure,"
9. "And we're going to keep after these people and the people who support them until this stops ."
10. I really had to work at it, and the skating is something I still have to keep after.