Irregular verbs

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Across
  1. 3. - Past participle of "to build"
  2. 4. - Past of "to swim"
  3. 7. -Past of "to ride"
  4. 9. -Past participle of "to sing"
  5. 11. - Past of "to run"
  6. 12. - Past of "to eat"
  7. 14. - Past of "to write"
  8. 15. -Past of "to speak"
  9. 17. -Past of "to sleep"
  10. 18. -Past participle of "to fly"
Down
  1. 1. -Past of "to cut"
  2. 2. - Past of "to give"
  3. 3. -Past of "to begin"
  4. 5. -Past participle of "to choose"
  5. 6. -Past of "to drink"
  6. 8. - Past of "to drive"
  7. 10. - Past of "to grow"
  8. 13. - Past of "to take"
  9. 15. - Past of "to spend"
  10. 16. -Past participle of "to fly"