Irregular forms

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Across
  1. 3. begin
  2. 4. have
  3. 6. forget
  4. 8. make
  5. 9. fall
  6. 11. break
  7. 12. think
  8. 13. find
  9. 14. build
  10. 17. write
  11. 18. give
  12. 19. run
  13. 21. speak
  14. 22. say
Down
  1. 1. do
  2. 2. come
  3. 5. eat
  4. 6. feel
  5. 7. tell
  6. 8. meet
  7. 10. leave
  8. 11. buy
  9. 15. understand
  10. 16. drink
  11. 17. win
  12. 20. go
  13. 22. see