Jawaban:

4. to have - Have - had - having

5. to turn - turn - turned - turning

6. to go - go - went - going

7. to stay - stay - stayed - staying

8. to try - try - tried - trying

9. to study - study - studied - studying

10. to ask - ask - asked - asking

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

21. to write - write - wrote - writting

22. to read - read - read - reading

23. to mop - mop - mopped - mopping

24. to finish - finish - finished - finishing

25. to trip - trip - tripped - tripping

26. to fall - fall - fell - falling

27. to join - join - joined - joining

Semoga membantu :)