1. back out - reverse a decision; move backward
2. call off - cancel
3. find out - discover, learn
4. give away - give, often with the recipient not named
5. give back - return (transitive)
6. give in - capitulate; yield to pressure
7. have on - be wearing
8. look in - visit briefly
9. look on - watch, without participating
10. look out - be careful
11. look over - examine
12. put off - delay, postpone
13. put on - dress; fool someone
14. run into - happen to encounter
15. show off - be an exhibitionist; exhibit
16. take off - undress (clothing) leave, used especially for aircraft
17. take on - assume responsibility
18. take over - take control of
19. try out - be tested, audition; test
20. turn off - stop the flow of; leave a road
21. turn on - begin the flow of, as electricity, water, etc.