Irregular verbs

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Across
  1. 2. ...-tore-torn
  2. 4. know-...-known
  3. 7. shine-...-shone
  4. 8. ...-forbade-forbidden
  5. 9. write-wrote-...
  6. 11. forgive-...-forgiven
  7. 12. ...-sold-sold
Down
  1. 1. ...-caught-caught
  2. 2. ...-thought-thought
  3. 3. teach-...-taught
  4. 5. wake-...-woken
  5. 6. understand-understood-...
  6. 7. speak-spoke-...
  7. 10. ...-left-left
  8. 12. sink-sank-...