dd "-s", "-es" or "-ies" to the end of the verbs. 1. achieve 2. study 3. beat 4. do 5. feel 6. know 7. play 8. eat 9. run 10. hit In 11. watch 12. lose 13. go 14. score 15. try 16. swim 17. train 18. win 19. stop 20. need​