Irregular past tenses

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Across
  1. 3. the past simple form of speak
  2. 5. the past simple form of drive
  3. 6. the past simple form of buy
  4. 7. the past simple form of think
  5. 8. the past simple form of leave
Down
  1. 1. the past simple form of drink
  2. 2. the past simple form of teach
  3. 3. the past simple form of sweep
  4. 4. the past simple form of break
  5. 9. the past simple form of feel