Irregular verbs

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Across
  1. 4. come
  2. 5. eat
  3. 6. run
  4. 7. drink
  5. 9. see
  6. 12. write
  7. 13. get
  8. 14. understand
Down
  1. 1. have
  2. 2. begin
  3. 3. make
  4. 6. read
  5. 7. do
  6. 8. know
  7. 9. sleep
  8. 10. go
  9. 11. buy
  10. 15. sit