11. to make / make / made / making
12. to do / do / did / doing
13. to come / come / came / coming
14. to help / help / helped / helping
15. to fix / fix / fixed / fixing
16. to call / call / called / calling
17. to mix / mix / mixed / mixing
18. to tell / tell / told / telling
19. to look / look / looked / looking
20. to describe / describe / described / describing