Irregular verbs in past participle

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Across
  1. 1. Bought
  2. 3. Been
  3. 4. Ridden
  4. 6. Awoken
  5. 7. Fought
  6. 10. Fallen
  7. 11. Felt
  8. 13. Rung
  9. 15. Cauhgt
  10. 17. Forgotten
  11. 18. Meant
  12. 19. Done
  13. 20. Got
Down
  1. 1. Bitten
  2. 2. Drunk
  3. 3. Brought
  4. 5. Eaten
  5. 8. Held
  6. 9. Begun
  7. 10. Flown
  8. 12. Broken
  9. 14. Gone
  10. 16. Had
  11. 17. Found
  12. 18. Made