Irregular Verbs

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Across
  1. 4. past tense of "to eat"
  2. 7. past tense of "to read"
  3. 10. past tense of "to think"
  4. 11. past tense of "to understand"
  5. 13. past tense of "to teach"
  6. 14. past tense of "to sleep"
  7. 15. present continuous of "to be"
Down
  1. 1. past tense of "to run"
  2. 2. present continuous of "to teach"
  3. 3. irregular past tense of "to dream"
  4. 5. past tense of "to go"
  5. 6. past tense of "to buy"
  6. 8. present continuous "to do"
  7. 9. past tense of "to dive"
  8. 12. present continuous of "to see"