Irregular verbs

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Across
  1. 2. fall
  2. 6. drive
  3. 7. forget
  4. 8. run
  5. 9. build
  6. 10. begin
  7. 13. think
  8. 16. fly
  9. 17. make
  10. 18. lead
  11. 20. hit
Down
  1. 1. go
  2. 3. break
  3. 4. learn
  4. 5. bring
  5. 11. grow
  6. 12. put
  7. 14. have
  8. 15. come
  9. 16. feel
  10. 19. do