Irregular verbs

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Across
  1. 3. sell
  2. 4. think
  3. 8. become
  4. 10. know
  5. 11. break
  6. 15. win
  7. 16. learn
  8. 17. spend
  9. 18. have
Down
  1. 1. do
  2. 2. buy
  3. 5. give
  4. 6. take
  5. 7. begin
  6. 9. eat
  7. 12. run
  8. 13. speak
  9. 14. see
  10. 15. go
  11. 16. lose
  12. 17. swim