Verbs Principal Parts

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Across
  1. 3. to have
  2. 4. I am able
  3. 8. to see
  4. 9. I heard
  5. 10. to give
  6. 11. I come
  7. 12. to be able
  8. 14. to go
  9. 16. I went
  10. 19. to know
  11. 20. I wanted
Down
  1. 1. to please
  2. 2. to leave
  3. 4. I please
  4. 5. I thought
  5. 6. to say
  6. 7. I see
  7. 13. I knew
  8. 15. I left
  9. 17. I gave
  10. 18. I hear