Irregular verbs

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Across
  1. 1. sit
  2. 4. see
  3. 7. buy
  4. 9. swim
  5. 10. think
  6. 13. do
  7. 15. can
  8. 16. eat
  9. 17. run
  10. 18. know
Down
  1. 2. take
  2. 3. put
  3. 5. go
  4. 6. say
  5. 8. get
  6. 11. have
  7. 12. give
  8. 14. drink
  9. 15. come