Irregular verbs

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Across
  1. 2. to return
  2. 3. to cook
  3. 5. to follow
  4. 7. to start
  5. 8. to want
  6. 10. to understand
  7. 11. to say
  8. 12. to do
  9. 13. to give
  10. 14. to eat lunch
  11. 15. to prefer
  12. 16. to put
  13. 18. to sleep
Down
  1. 1. to close
  2. 4. to compete
  3. 5. to serve
  4. 6. to brush
  5. 9. to order
  6. 10. to find
  7. 15. to think
  8. 17. to be able/can