Irregular verbs

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Across
  1. 1. past of catch
  2. 3. past oof go
  3. 4. past of swim
  4. 5. past of sit
  5. 7. past of tell
  6. 9. past of write
Down
  1. 2. past of understand
  2. 6. past of ride
  3. 8. past of drink
  4. 10. past of take