Irregular verbs crossword race!

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Across
  1. 1. past simple form of speak
  2. 3. past simple form of 'broadcast'
  3. 6. past simple form of 'teach'
  4. 8. past participle form of 'buy'
  5. 11. past simple form of 'understand'
  6. 12. past participle form of 'bite'
  7. 13. past simple form of 'show'
  8. 14. past participle form of 'ride'
  9. 15. past participle form of 'forbid'
Down
  1. 1. past simple form of 'swim'
  2. 2. past participle form of 'bring'
  3. 4. past participle form of think
  4. 5. past simple form of find
  5. 7. past participle form of 'choose'
  6. 9. past participle form of 'write'
  7. 10. past participle form of 'forget'