Irregular verbs

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Across
  1. 1. is
  2. 3. think
  3. 4. came
  4. 6. buy
  5. 7. send
  6. 8. ran
  7. 11. got
  8. 13. draw
  9. 16. drive
  10. 17. say
  11. 18. know
  12. 21. sleep
  13. 22. swim
Down
  1. 1. write
  2. 2. forget
  3. 5. wake
  4. 7. sang
  5. 9. make
  6. 10. eat
  7. 12. take
  8. 14. are
  9. 15. read
  10. 16. do
  11. 19. go
  12. 20. fly