regular and irregular verb

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Across
  1. 2. have
  2. 4. study
  3. 8. like
  4. 9. eat
  5. 10. play
  6. 12. buy
  7. 14. clean
  8. 16. work
  9. 17. cry
  10. 18. stop
Down
  1. 1. walk
  2. 3. read
  3. 5. take
  4. 6. sleep
  5. 7. sing
  6. 11. ask
  7. 13. run
  8. 14. cook
  9. 15. see
  10. 17. come