irregular verbs

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Across
  1. 3. burnt
  2. 4. born
  3. 5. become
  4. 8. brought
  5. 9. bitten
  6. 10. been
Down
  1. 1. beat
  2. 2. broken
  3. 3. begun
  4. 5. bought
  5. 6. burst
  6. 7. built
  7. 9. blown