Irregular verb

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Across
  1. 3. Broke
  2. 4. Gave
  3. 6. Brought
  4. 7. Felt
  5. 8. Built
  6. 9. Did
  7. 10. Bought
  8. 13. Kept
  9. 14. Came
  10. 16. Heard
Down
  1. 1. Went
  2. 2. Had
  3. 4. Got
  4. 5. Found
  5. 7. Fell
  6. 9. Drank
  7. 10. Was
  8. 11. Became
  9. 12. Began
  10. 15. Ate