Irregular verbs

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Across
  1. 1. build
  2. 3. sell
  3. 4. know
  4. 6. eat
  5. 9. stand
  6. 10. make
  7. 11. do
  8. 13. buy
  9. 14. sing
  10. 15. write
Down
  1. 1. break
  2. 2. take
  3. 5. go
  4. 7. tell
  5. 8. teach
  6. 9. send
  7. 12. forget
  8. 14. see