Irregular verbs

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Across
  1. 2. sing
  2. 3. know
  3. 6. begin
  4. 8. think
  5. 9. do
  6. 10. pay
  7. 11. buy
  8. 13. read
  9. 14. send
  10. 16. come
  11. 17. forget
  12. 18. speak
  13. 19. leave
Down
  1. 1. make
  2. 4. go
  3. 5. find
  4. 6. build
  5. 7. eat
  6. 12. have
  7. 13. run
  8. 14. sleep
  9. 15. catch
  10. 17. fall